Home / 71,328.47-98,433.29-39,497.39

Finding the Fourth Proportional to 71,328.47, 98,433.29 and 39,497.39

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Solution

The fourth proportional to 71,328.47, 98,433.29 and 39,497.39 is: 54,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328.47 : 98,433.29 = 39,497.39 : x
  2. Step 2: Convert to fraction form
    71,328.47/98,433.29 = 39,497.39/x
  3. Step 3: Cross multiply
    71,328.47x = 98,433.29 × 39,497.39
  4. Step 4: Simplify right side
    71,328.47x = 3,887,858,044.11
  5. Step 5: Solve for x
    x = 3,887,858,044.11/71,328.47
  6. Step 6: Final answer
    x = 54,506.40

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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.