Home / 87,444.56-130,969.08-71,697.68

Finding the Fourth Proportional to 87,444.56, 130,969.08 and 71,697.68

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Solution

The fourth proportional to 87,444.56, 130,969.08 and 71,697.68 is: 107,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,444.56 : 130,969.08 = 71,697.68 : x
  2. Step 2: Convert to fraction form
    87,444.56/130,969.08 = 71,697.68/x
  3. Step 3: Cross multiply
    87,444.56x = 130,969.08 × 71,697.68
  4. Step 4: Simplify right side
    87,444.56x = 9,390,179,187.73
  5. Step 5: Solve for x
    x = 9,390,179,187.73/87,444.56
  6. Step 6: Final answer
    x = 107,384.37

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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.