Home / 81,454.10-112,475.10-61,275.92

Finding the Fourth Proportional to 81,454.10, 112,475.10 and 61,275.92

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Solution

The fourth proportional to 81,454.10, 112,475.10 and 61,275.92 is: 84,612.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,454.10 : 112,475.10 = 61,275.92 : x
  2. Step 2: Convert to fraction form
    81,454.10/112,475.10 = 61,275.92/x
  3. Step 3: Cross multiply
    81,454.10x = 112,475.10 × 61,275.92
  4. Step 4: Simplify right side
    81,454.10x = 6,892,015,229.59
  5. Step 5: Solve for x
    x = 6,892,015,229.59/81,454.10
  6. Step 6: Final answer
    x = 84,612.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.