Home / 71,329.21-98,434.24-39,498.11

Finding the Fourth Proportional to 71,329.21, 98,434.24 and 39,498.11

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Solution

The fourth proportional to 71,329.21, 98,434.24 and 39,498.11 is: 54,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,329.21 : 98,434.24 = 39,498.11 : x
  2. Step 2: Convert to fraction form
    71,329.21/98,434.24 = 39,498.11/x
  3. Step 3: Cross multiply
    71,329.21x = 98,434.24 × 39,498.11
  4. Step 4: Simplify right side
    71,329.21x = 3,887,966,439.29
  5. Step 5: Solve for x
    x = 3,887,966,439.29/71,329.21
  6. Step 6: Final answer
    x = 54,507.35

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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.