Home / 55,423.68-83,168.64-20,366.88

Finding the Fourth Proportional to 55,423.68, 83,168.64 and 20,366.88

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Solution

The fourth proportional to 55,423.68, 83,168.64 and 20,366.88 is: 30,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,423.68 : 83,168.64 = 20,366.88 : x
  2. Step 2: Convert to fraction form
    55,423.68/83,168.64 = 20,366.88/x
  3. Step 3: Cross multiply
    55,423.68x = 83,168.64 × 20,366.88
  4. Step 4: Simplify right side
    55,423.68x = 1,693,885,710.64
  5. Step 5: Solve for x
    x = 1,693,885,710.64/55,423.68
  6. Step 6: Final answer
    x = 30,562.49

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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.