Home / 71,426.13-98,562.74-39,155.58

Finding the Fourth Proportional to 71,426.13, 98,562.74 and 39,155.58

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Solution

The fourth proportional to 71,426.13, 98,562.74 and 39,155.58 is: 54,031.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,426.13 : 98,562.74 = 39,155.58 : x
  2. Step 2: Convert to fraction form
    71,426.13/98,562.74 = 39,155.58/x
  3. Step 3: Cross multiply
    71,426.13x = 98,562.74 × 39,155.58
  4. Step 4: Simplify right side
    71,426.13x = 3,859,281,055.31
  5. Step 5: Solve for x
    x = 3,859,281,055.31/71,426.13
  6. Step 6: Final answer
    x = 54,031.78

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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.