Home / 66,444.40-99,520.80-59,057.20

Finding the Fourth Proportional to 66,444.40, 99,520.80 and 59,057.20

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Solution

The fourth proportional to 66,444.40, 99,520.80 and 59,057.20 is: 88,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,444.40 : 99,520.80 = 59,057.20 : x
  2. Step 2: Convert to fraction form
    66,444.40/99,520.80 = 59,057.20/x
  3. Step 3: Cross multiply
    66,444.40x = 99,520.80 × 59,057.20
  4. Step 4: Simplify right side
    66,444.40x = 5,877,419,789.76
  5. Step 5: Solve for x
    x = 5,877,419,789.76/66,444.40
  6. Step 6: Final answer
    x = 88,456.21

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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.