Home / 40,742.40-61,084.80-15,772.80

Finding the Fourth Proportional to 40,742.40, 61,084.80 and 15,772.80

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Solution

The fourth proportional to 40,742.40, 61,084.80 and 15,772.80 is: 23,648.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,742.40 : 61,084.80 = 15,772.80 : x
  2. Step 2: Convert to fraction form
    40,742.40/61,084.80 = 15,772.80/x
  3. Step 3: Cross multiply
    40,742.40x = 61,084.80 × 15,772.80
  4. Step 4: Simplify right side
    40,742.40x = 963,478,333.44
  5. Step 5: Solve for x
    x = 963,478,333.44/40,742.40
  6. Step 6: Final answer
    x = 23,648.05

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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.