Home / 55,931.20-83,921.10-28,229.20

Finding the Fourth Proportional to 55,931.20, 83,921.10 and 28,229.20

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Solution

The fourth proportional to 55,931.20, 83,921.10 and 28,229.20 is: 42,356.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,931.20 : 83,921.10 = 28,229.20 : x
  2. Step 2: Convert to fraction form
    55,931.20/83,921.10 = 28,229.20/x
  3. Step 3: Cross multiply
    55,931.20x = 83,921.10 × 28,229.20
  4. Step 4: Simplify right side
    55,931.20x = 2,369,025,516.12
  5. Step 5: Solve for x
    x = 2,369,025,516.12/55,931.20
  6. Step 6: Final answer
    x = 42,356.06

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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.