Home / 42,665.60-63,998.40-27,100.80

Finding the Fourth Proportional to 42,665.60, 63,998.40 and 27,100.80

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Solution

The fourth proportional to 42,665.60, 63,998.40 and 27,100.80 is: 40,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,665.60 : 63,998.40 = 27,100.80 : x
  2. Step 2: Convert to fraction form
    42,665.60/63,998.40 = 27,100.80/x
  3. Step 3: Cross multiply
    42,665.60x = 63,998.40 × 27,100.80
  4. Step 4: Simplify right side
    42,665.60x = 1,734,407,838.72
  5. Step 5: Solve for x
    x = 1,734,407,838.72/42,665.60
  6. Step 6: Final answer
    x = 40,651.20

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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.