Home / 67,403.20-101,104.80-66,528.40

Finding the Fourth Proportional to 67,403.20, 101,104.80 and 66,528.40

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Solution

The fourth proportional to 67,403.20, 101,104.80 and 66,528.40 is: 99,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,403.20 : 101,104.80 = 66,528.40 : x
  2. Step 2: Convert to fraction form
    67,403.20/101,104.80 = 66,528.40/x
  3. Step 3: Cross multiply
    67,403.20x = 101,104.80 × 66,528.40
  4. Step 4: Simplify right side
    67,403.20x = 6,726,340,576.32
  5. Step 5: Solve for x
    x = 6,726,340,576.32/67,403.20
  6. Step 6: Final answer
    x = 99,792.60

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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.