Home / 66,187.20-99,298.40-28,731.20

Finding the Fourth Proportional to 66,187.20, 99,298.40 and 28,731.20

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Solution

The fourth proportional to 66,187.20, 99,298.40 and 28,731.20 is: 43,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,187.20 : 99,298.40 = 28,731.20 : x
  2. Step 2: Convert to fraction form
    66,187.20/99,298.40 = 28,731.20/x
  3. Step 3: Cross multiply
    66,187.20x = 99,298.40 × 28,731.20
  4. Step 4: Simplify right side
    66,187.20x = 2,852,962,190.08
  5. Step 5: Solve for x
    x = 2,852,962,190.08/66,187.20
  6. Step 6: Final answer
    x = 43,104.44

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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.