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Finding the Fourth Proportional to 70,737.30, 97,616.70 and 38,906.64

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Solution

The fourth proportional to 70,737.30, 97,616.70 and 38,906.64 is: 53,690.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,737.30 : 97,616.70 = 38,906.64 : x
  2. Step 2: Convert to fraction form
    70,737.30/97,616.70 = 38,906.64/x
  3. Step 3: Cross multiply
    70,737.30x = 97,616.70 × 38,906.64
  4. Step 4: Simplify right side
    70,737.30x = 3,797,937,804.89
  5. Step 5: Solve for x
    x = 3,797,937,804.89/70,737.30
  6. Step 6: Final answer
    x = 53,690.74

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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.