Home / 81,316.38-112,218.28-49,050.84

Finding the Fourth Proportional to 81,316.38, 112,218.28 and 49,050.84

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Solution

The fourth proportional to 81,316.38, 112,218.28 and 49,050.84 is: 67,691.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,316.38 : 112,218.28 = 49,050.84 : x
  2. Step 2: Convert to fraction form
    81,316.38/112,218.28 = 49,050.84/x
  3. Step 3: Cross multiply
    81,316.38x = 112,218.28 × 49,050.84
  4. Step 4: Simplify right side
    81,316.38x = 5,504,400,897.36
  5. Step 5: Solve for x
    x = 5,504,400,897.36/81,316.38
  6. Step 6: Final answer
    x = 67,691.17

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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.