Home / 81,423.18-112,418.91-50,842.98

Finding the Fourth Proportional to 81,423.18, 112,418.91 and 50,842.98

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Solution

The fourth proportional to 81,423.18, 112,418.91 and 50,842.98 is: 70,197.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,423.18 : 112,418.91 = 50,842.98 : x
  2. Step 2: Convert to fraction form
    81,423.18/112,418.91 = 50,842.98/x
  3. Step 3: Cross multiply
    81,423.18x = 112,418.91 × 50,842.98
  4. Step 4: Simplify right side
    81,423.18x = 5,715,712,392.75
  5. Step 5: Solve for x
    x = 5,715,712,392.75/81,423.18
  6. Step 6: Final answer
    x = 70,197.61

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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.