Home / 81,651.12-112,670.84-45,834.14

Finding the Fourth Proportional to 81,651.12, 112,670.84 and 45,834.14

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Solution

The fourth proportional to 81,651.12, 112,670.84 and 45,834.14 is: 63,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,651.12 : 112,670.84 = 45,834.14 : x
  2. Step 2: Convert to fraction form
    81,651.12/112,670.84 = 45,834.14/x
  3. Step 3: Cross multiply
    81,651.12x = 112,670.84 × 45,834.14
  4. Step 4: Simplify right side
    81,651.12x = 5,164,170,261.95
  5. Step 5: Solve for x
    x = 5,164,170,261.95/81,651.12
  6. Step 6: Final answer
    x = 63,246.78

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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.