Home / 81,470.58-112,456.95-51,306.39

Finding the Fourth Proportional to 81,470.58, 112,456.95 and 51,306.39

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Solution

The fourth proportional to 81,470.58, 112,456.95 and 51,306.39 is: 70,820.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,470.58 : 112,456.95 = 51,306.39 : x
  2. Step 2: Convert to fraction form
    81,470.58/112,456.95 = 51,306.39/x
  3. Step 3: Cross multiply
    81,470.58x = 112,456.95 × 51,306.39
  4. Step 4: Simplify right side
    81,470.58x = 5,769,760,134.91
  5. Step 5: Solve for x
    x = 5,769,760,134.91/81,470.58
  6. Step 6: Final answer
    x = 70,820.17

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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.