Home / 54,872,049.12-75,729,663.36-31,673,402.88

Finding the Fourth Proportional to 54,872,049.12, 75,729,663.36 and 31,673,402.88

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Solution

The fourth proportional to 54,872,049.12, 75,729,663.36 and 31,673,402.88 is: 43,712,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,872,049.12 : 75,729,663.36 = 31,673,402.88 : x
  2. Step 2: Convert to fraction form
    54,872,049.12/75,729,663.36 = 31,673,402.88/x
  3. Step 3: Cross multiply
    54,872,049.12x = 75,729,663.36 × 31,673,402.88
  4. Step 4: Simplify right side
    54,872,049.12x = 2,398,616,137,568,054.50
  5. Step 5: Solve for x
    x = 2,398,616,137,568,054.50/54,872,049.12
  6. Step 6: Final answer
    x = 43,712,895.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.