Home / 81,305.65-112,192-45,492.85

Finding the Fourth Proportional to 81,305.65, 112,192 and 45,492.85

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Solution

The fourth proportional to 81,305.65, 112,192 and 45,492.85 is: 62,774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,305.65 : 112,192 = 45,492.85 : x
  2. Step 2: Convert to fraction form
    81,305.65/112,192 = 45,492.85/x
  3. Step 3: Cross multiply
    81,305.65x = 112,192 × 45,492.85
  4. Step 4: Simplify right side
    81,305.65x = 5,103,933,827.20
  5. Step 5: Solve for x
    x = 5,103,933,827.20/81,305.65
  6. Step 6: Final answer
    x = 62,774.65

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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.