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Finding the Fourth Proportional to 58,039.70, 87,059.55 and 18,600.80

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Solution

The fourth proportional to 58,039.70, 87,059.55 and 18,600.80 is: 27,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,039.70 : 87,059.55 = 18,600.80 : x
  2. Step 2: Convert to fraction form
    58,039.70/87,059.55 = 18,600.80/x
  3. Step 3: Cross multiply
    58,039.70x = 87,059.55 × 18,600.80
  4. Step 4: Simplify right side
    58,039.70x = 1,619,377,277.64
  5. Step 5: Solve for x
    x = 1,619,377,277.64/58,039.70
  6. Step 6: Final answer
    x = 27,901.20

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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.