Home / 71,325.43-98,432.15-39,494.32

Finding the Fourth Proportional to 71,325.43, 98,432.15 and 39,494.32

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Solution

The fourth proportional to 71,325.43, 98,432.15 and 39,494.32 is: 54,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.43 : 98,432.15 = 39,494.32 : x
  2. Step 2: Convert to fraction form
    71,325.43/98,432.15 = 39,494.32/x
  3. Step 3: Cross multiply
    71,325.43x = 98,432.15 × 39,494.32
  4. Step 4: Simplify right side
    71,325.43x = 3,887,510,386.84
  5. Step 5: Solve for x
    x = 3,887,510,386.84/71,325.43
  6. Step 6: Final answer
    x = 54,503.85

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1.5x scale

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.