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Finding the Fourth Proportional to 87,041.32, 130,620.36 and 55,898.44

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Solution

The fourth proportional to 87,041.32, 130,620.36 and 55,898.44 is: 83,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,041.32 : 130,620.36 = 55,898.44 : x
  2. Step 2: Convert to fraction form
    87,041.32/130,620.36 = 55,898.44/x
  3. Step 3: Cross multiply
    87,041.32x = 130,620.36 × 55,898.44
  4. Step 4: Simplify right side
    87,041.32x = 7,301,474,356.24
  5. Step 5: Solve for x
    x = 7,301,474,356.24/87,041.32
  6. Step 6: Final answer
    x = 83,885.15

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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.