Home / 87,065.36-119,981.76-58,721.84

Finding the Fourth Proportional to 87,065.36, 119,981.76 and 58,721.84

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Solution

The fourth proportional to 87,065.36, 119,981.76 and 58,721.84 is: 80,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,065.36 : 119,981.76 = 58,721.84 : x
  2. Step 2: Convert to fraction form
    87,065.36/119,981.76 = 58,721.84/x
  3. Step 3: Cross multiply
    87,065.36x = 119,981.76 × 58,721.84
  4. Step 4: Simplify right side
    87,065.36x = 7,045,549,713.64
  5. Step 5: Solve for x
    x = 7,045,549,713.64/87,065.36
  6. Step 6: Final answer
    x = 80,922.54

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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.