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Finding the Fourth Proportional to 70,489.15, 97,275.03 and 38,658.71

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Solution

The fourth proportional to 70,489.15, 97,275.03 and 38,658.71 is: 53,349.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,489.15 : 97,275.03 = 38,658.71 : x
  2. Step 2: Convert to fraction form
    70,489.15/97,275.03 = 38,658.71/x
  3. Step 3: Cross multiply
    70,489.15x = 97,275.03 × 38,658.71
  4. Step 4: Simplify right side
    70,489.15x = 3,760,527,175.01
  5. Step 5: Solve for x
    x = 3,760,527,175.01/70,489.15
  6. Step 6: Final answer
    x = 53,349.03

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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.