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Finding the Fourth Proportional to 71,083.08, 98,091 and 39,254.76

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Solution

The fourth proportional to 71,083.08, 98,091 and 39,254.76 is: 54,169.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,083.08 : 98,091 = 39,254.76 : x
  2. Step 2: Convert to fraction form
    71,083.08/98,091 = 39,254.76/x
  3. Step 3: Cross multiply
    71,083.08x = 98,091 × 39,254.76
  4. Step 4: Simplify right side
    71,083.08x = 3,850,538,663.16
  5. Step 5: Solve for x
    x = 3,850,538,663.16/71,083.08
  6. Step 6: Final answer
    x = 54,169.55

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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.