Home / 65,711.10-98,577.45-28,289.10

Finding the Fourth Proportional to 65,711.10, 98,577.45 and 28,289.10

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Solution

The fourth proportional to 65,711.10, 98,577.45 and 28,289.10 is: 42,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,711.10 : 98,577.45 = 28,289.10 : x
  2. Step 2: Convert to fraction form
    65,711.10/98,577.45 = 28,289.10/x
  3. Step 3: Cross multiply
    65,711.10x = 98,577.45 × 28,289.10
  4. Step 4: Simplify right side
    65,711.10x = 2,788,667,340.80
  5. Step 5: Solve for x
    x = 2,788,667,340.80/65,711.10
  6. Step 6: Final answer
    x = 42,438.30

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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.