Home / 99,539.78-149,304.27-40,359.56

Finding the Fourth Proportional to 99,539.78, 149,304.27 and 40,359.56

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Solution

The fourth proportional to 99,539.78, 149,304.27 and 40,359.56 is: 60,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,539.78 : 149,304.27 = 40,359.56 : x
  2. Step 2: Convert to fraction form
    99,539.78/149,304.27 = 40,359.56/x
  3. Step 3: Cross multiply
    99,539.78x = 149,304.27 × 40,359.56
  4. Step 4: Simplify right side
    99,539.78x = 6,025,854,643.32
  5. Step 5: Solve for x
    x = 6,025,854,643.32/99,539.78
  6. Step 6: Final answer
    x = 60,537.15

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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.