Home / 81,403.52-112,337.68-45,106.08

Finding the Fourth Proportional to 81,403.52, 112,337.68 and 45,106.08

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Solution

The fourth proportional to 81,403.52, 112,337.68 and 45,106.08 is: 62,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,403.52 : 112,337.68 = 45,106.08 : x
  2. Step 2: Convert to fraction form
    81,403.52/112,337.68 = 45,106.08/x
  3. Step 3: Cross multiply
    81,403.52x = 112,337.68 × 45,106.08
  4. Step 4: Simplify right side
    81,403.52x = 5,067,112,381.09
  5. Step 5: Solve for x
    x = 5,067,112,381.09/81,403.52
  6. Step 6: Final answer
    x = 62,246.85

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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.