Home / 76,755.20-115,143.27-26,823.71

Finding the Fourth Proportional to 76,755.20, 115,143.27 and 26,823.71

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Solution

The fourth proportional to 76,755.20, 115,143.27 and 26,823.71 is: 40,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,755.20 : 115,143.27 = 26,823.71 : x
  2. Step 2: Convert to fraction form
    76,755.20/115,143.27 = 26,823.71/x
  3. Step 3: Cross multiply
    76,755.20x = 115,143.27 × 26,823.71
  4. Step 4: Simplify right side
    76,755.20x = 3,088,569,373.40
  5. Step 5: Solve for x
    x = 3,088,569,373.40/76,755.20
  6. Step 6: Final answer
    x = 40,239.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.