Home / 99,327.52-149,024.40-40,131.28

Finding the Fourth Proportional to 99,327.52, 149,024.40 and 40,131.28

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Solution

The fourth proportional to 99,327.52, 149,024.40 and 40,131.28 is: 60,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,327.52 : 149,024.40 = 40,131.28 : x
  2. Step 2: Convert to fraction form
    99,327.52/149,024.40 = 40,131.28/x
  3. Step 3: Cross multiply
    99,327.52x = 149,024.40 × 40,131.28
  4. Step 4: Simplify right side
    99,327.52x = 5,980,539,923.23
  5. Step 5: Solve for x
    x = 5,980,539,923.23/99,327.52
  6. Step 6: Final answer
    x = 60,210.30

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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.