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Finding the Fourth Proportional to 71,630.33, 98,851.68 and 39,364.74

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Solution

The fourth proportional to 71,630.33, 98,851.68 and 39,364.74 is: 54,324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,630.33 : 98,851.68 = 39,364.74 : x
  2. Step 2: Convert to fraction form
    71,630.33/98,851.68 = 39,364.74/x
  3. Step 3: Cross multiply
    71,630.33x = 98,851.68 × 39,364.74
  4. Step 4: Simplify right side
    71,630.33x = 3,891,270,681.76
  5. Step 5: Solve for x
    x = 3,891,270,681.76/71,630.33
  6. Step 6: Final answer
    x = 54,324.35

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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.