Home / 82,688.67-124,033.01-20,359.17

Finding the Fourth Proportional to 82,688.67, 124,033.01 and 20,359.17

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Solution

The fourth proportional to 82,688.67, 124,033.01 and 20,359.17 is: 30,538.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,688.67 : 124,033.01 = 20,359.17 : x
  2. Step 2: Convert to fraction form
    82,688.67/124,033.01 = 20,359.17/x
  3. Step 3: Cross multiply
    82,688.67x = 124,033.01 × 20,359.17
  4. Step 4: Simplify right side
    82,688.67x = 2,525,209,034.41
  5. Step 5: Solve for x
    x = 2,525,209,034.41/82,688.67
  6. Step 6: Final answer
    x = 30,538.76

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Similar ratio
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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.