Home / 54,257.40-81,386.10-35,655.78

Finding the Fourth Proportional to 54,257.40, 81,386.10 and 35,655.78

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Solution

The fourth proportional to 54,257.40, 81,386.10 and 35,655.78 is: 53,483.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,257.40 : 81,386.10 = 35,655.78 : x
  2. Step 2: Convert to fraction form
    54,257.40/81,386.10 = 35,655.78/x
  3. Step 3: Cross multiply
    54,257.40x = 81,386.10 × 35,655.78
  4. Step 4: Simplify right side
    54,257.40x = 2,901,884,876.66
  5. Step 5: Solve for x
    x = 2,901,884,876.66/54,257.40
  6. Step 6: Final answer
    x = 53,483.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.