Home / 70,542.81-97,350.66-38,711.61

Finding the Fourth Proportional to 70,542.81, 97,350.66 and 38,711.61

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Solution

The fourth proportional to 70,542.81, 97,350.66 and 38,711.61 is: 53,422.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,542.81 : 97,350.66 = 38,711.61 : x
  2. Step 2: Convert to fraction form
    70,542.81/97,350.66 = 38,711.61/x
  3. Step 3: Cross multiply
    70,542.81x = 97,350.66 × 38,711.61
  4. Step 4: Simplify right side
    70,542.81x = 3,768,600,783.16
  5. Step 5: Solve for x
    x = 3,768,600,783.16/70,542.81
  6. Step 6: Final answer
    x = 53,422.89

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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.