Home / 40,128.18-60,159.42-15,154.06

Finding the Fourth Proportional to 40,128.18, 60,159.42 and 15,154.06

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Solution

The fourth proportional to 40,128.18, 60,159.42 and 15,154.06 is: 22,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,128.18 : 60,159.42 = 15,154.06 : x
  2. Step 2: Convert to fraction form
    40,128.18/60,159.42 = 15,154.06/x
  3. Step 3: Cross multiply
    40,128.18x = 60,159.42 × 15,154.06
  4. Step 4: Simplify right side
    40,128.18x = 911,659,460.25
  5. Step 5: Solve for x
    x = 911,659,460.25/40,128.18
  6. Step 6: Final answer
    x = 22,718.68

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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.