Home / 66,043.20-99,259.20-57,489.60

Finding the Fourth Proportional to 66,043.20, 99,259.20 and 57,489.60

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Solution

The fourth proportional to 66,043.20, 99,259.20 and 57,489.60 is: 86,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,043.20 : 99,259.20 = 57,489.60 : x
  2. Step 2: Convert to fraction form
    66,043.20/99,259.20 = 57,489.60/x
  3. Step 3: Cross multiply
    66,043.20x = 99,259.20 × 57,489.60
  4. Step 4: Simplify right side
    66,043.20x = 5,706,371,704.32
  5. Step 5: Solve for x
    x = 5,706,371,704.32/66,043.20
  6. Step 6: Final answer
    x = 86,403.62

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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.