Home / 56,427.20-77,843.36-39,670.08

Finding the Fourth Proportional to 56,427.20, 77,843.36 and 39,670.08

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Solution

The fourth proportional to 56,427.20, 77,843.36 and 39,670.08 is: 54,726.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,427.20 : 77,843.36 = 39,670.08 : x
  2. Step 2: Convert to fraction form
    56,427.20/77,843.36 = 39,670.08/x
  3. Step 3: Cross multiply
    56,427.20x = 77,843.36 × 39,670.08
  4. Step 4: Simplify right side
    56,427.20x = 3,088,052,318.67
  5. Step 5: Solve for x
    x = 3,088,052,318.67/56,427.20
  6. Step 6: Final answer
    x = 54,726.31

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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.