Home / 99,742.40-149,484.33-40,509.26

Finding the Fourth Proportional to 99,742.40, 149,484.33 and 40,509.26

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Solution

The fourth proportional to 99,742.40, 149,484.33 and 40,509.26 is: 60,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,742.40 : 149,484.33 = 40,509.26 : x
  2. Step 2: Convert to fraction form
    99,742.40/149,484.33 = 40,509.26/x
  3. Step 3: Cross multiply
    99,742.40x = 149,484.33 × 40,509.26
  4. Step 4: Simplify right side
    99,742.40x = 6,055,499,589.90
  5. Step 5: Solve for x
    x = 6,055,499,589.90/99,742.40
  6. Step 6: Final answer
    x = 60,711.39

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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.