Home / 91,715.68-137,507.50-45,001.36

Finding the Fourth Proportional to 91,715.68, 137,507.50 and 45,001.36

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Solution

The fourth proportional to 91,715.68, 137,507.50 and 45,001.36 is: 67,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,715.68 : 137,507.50 = 45,001.36 : x
  2. Step 2: Convert to fraction form
    91,715.68/137,507.50 = 45,001.36/x
  3. Step 3: Cross multiply
    91,715.68x = 137,507.50 × 45,001.36
  4. Step 4: Simplify right side
    91,715.68x = 6,188,024,510.20
  5. Step 5: Solve for x
    x = 6,188,024,510.20/91,715.68
  6. Step 6: Final answer
    x = 67,469.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.