Home / 70,607.13-97,439.53-38,776.71

Finding the Fourth Proportional to 70,607.13, 97,439.53 and 38,776.71

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Solution

The fourth proportional to 70,607.13, 97,439.53 and 38,776.71 is: 53,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,607.13 : 97,439.53 = 38,776.71 : x
  2. Step 2: Convert to fraction form
    70,607.13/97,439.53 = 38,776.71/x
  3. Step 3: Cross multiply
    70,607.13x = 97,439.53 × 38,776.71
  4. Step 4: Simplify right side
    70,607.13x = 3,778,384,397.35
  5. Step 5: Solve for x
    x = 3,778,384,397.35/70,607.13
  6. Step 6: Final answer
    x = 53,512.79

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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.