Home / 51,545.04-77,327.28-20,382.72

Finding the Fourth Proportional to 51,545.04, 77,327.28 and 20,382.72

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Solution

The fourth proportional to 51,545.04, 77,327.28 and 20,382.72 is: 30,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,545.04 : 77,327.28 = 20,382.72 : x
  2. Step 2: Convert to fraction form
    51,545.04/77,327.28 = 20,382.72/x
  3. Step 3: Cross multiply
    51,545.04x = 77,327.28 × 20,382.72
  4. Step 4: Simplify right side
    51,545.04x = 1,576,140,296.60
  5. Step 5: Solve for x
    x = 1,576,140,296.60/51,545.04
  6. Step 6: Final answer
    x = 30,577.92

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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.