Home / 82,980.04-124,399.50-38,632.48

Finding the Fourth Proportional to 82,980.04, 124,399.50 and 38,632.48

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Solution

The fourth proportional to 82,980.04, 124,399.50 and 38,632.48 is: 57,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,980.04 : 124,399.50 = 38,632.48 : x
  2. Step 2: Convert to fraction form
    82,980.04/124,399.50 = 38,632.48/x
  3. Step 3: Cross multiply
    82,980.04x = 124,399.50 × 38,632.48
  4. Step 4: Simplify right side
    82,980.04x = 4,805,861,195.76
  5. Step 5: Solve for x
    x = 4,805,861,195.76/82,980.04
  6. Step 6: Final answer
    x = 57,915.87

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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.