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Finding the Fourth Proportional to 55,125.59, 82,688.40 and 13,572.59

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Solution

The fourth proportional to 55,125.59, 82,688.40 and 13,572.59 is: 20,358.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,125.59 : 82,688.40 = 13,572.59 : x
  2. Step 2: Convert to fraction form
    55,125.59/82,688.40 = 13,572.59/x
  3. Step 3: Cross multiply
    55,125.59x = 82,688.40 × 13,572.59
  4. Step 4: Simplify right side
    55,125.59x = 1,122,295,337.51
  5. Step 5: Solve for x
    x = 1,122,295,337.51/55,125.59
  6. Step 6: Final answer
    x = 20,358.88

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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.