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Finding the Fourth Proportional to 70,753.73, 97,636.61 and 38,921.81

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Solution

The fourth proportional to 70,753.73, 97,636.61 and 38,921.81 is: 53,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,753.73 : 97,636.61 = 38,921.81 : x
  2. Step 2: Convert to fraction form
    70,753.73/97,636.61 = 38,921.81/x
  3. Step 3: Cross multiply
    70,753.73x = 97,636.61 × 38,921.81
  4. Step 4: Simplify right side
    70,753.73x = 3,800,193,192.59
  5. Step 5: Solve for x
    x = 3,800,193,192.59/70,753.73
  6. Step 6: Final answer
    x = 53,710.15

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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.