Home / 67,728.40-101,567.46-28,288.16

Finding the Fourth Proportional to 67,728.40, 101,567.46 and 28,288.16

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Solution

The fourth proportional to 67,728.40, 101,567.46 and 28,288.16 is: 42,421.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,728.40 : 101,567.46 = 28,288.16 : x
  2. Step 2: Convert to fraction form
    67,728.40/101,567.46 = 28,288.16/x
  3. Step 3: Cross multiply
    67,728.40x = 101,567.46 × 28,288.16
  4. Step 4: Simplify right side
    67,728.40x = 2,873,156,559.27
  5. Step 5: Solve for x
    x = 2,873,156,559.27/67,728.40
  6. Step 6: Final answer
    x = 42,421.74

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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.