Home / 72,626.10-108,977.85-28,254.30

Finding the Fourth Proportional to 72,626.10, 108,977.85 and 28,254.30

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Solution

The fourth proportional to 72,626.10, 108,977.85 and 28,254.30 is: 42,396.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,626.10 : 108,977.85 = 28,254.30 : x
  2. Step 2: Convert to fraction form
    72,626.10/108,977.85 = 28,254.30/x
  3. Step 3: Cross multiply
    72,626.10x = 108,977.85 × 28,254.30
  4. Step 4: Simplify right side
    72,626.10x = 3,079,092,867.26
  5. Step 5: Solve for x
    x = 3,079,092,867.26/72,626.10
  6. Step 6: Final answer
    x = 42,396.51

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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.