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Finding the Fourth Proportional to 70,340.92, 97,066.83 and 38,503.78

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Solution

The fourth proportional to 70,340.92, 97,066.83 and 38,503.78 is: 53,133.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,340.92 : 97,066.83 = 38,503.78 : x
  2. Step 2: Convert to fraction form
    70,340.92/97,066.83 = 38,503.78/x
  3. Step 3: Cross multiply
    70,340.92x = 97,066.83 × 38,503.78
  4. Step 4: Simplify right side
    70,340.92x = 3,737,439,867.62
  5. Step 5: Solve for x
    x = 3,737,439,867.62/70,340.92
  6. Step 6: Final answer
    x = 53,133.22

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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.