Home / 81,522.29-122,178.17-36,510.75

Finding the Fourth Proportional to 81,522.29, 122,178.17 and 36,510.75

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Solution

The fourth proportional to 81,522.29, 122,178.17 and 36,510.75 is: 54,718.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,522.29 : 122,178.17 = 36,510.75 : x
  2. Step 2: Convert to fraction form
    81,522.29/122,178.17 = 36,510.75/x
  3. Step 3: Cross multiply
    81,522.29x = 122,178.17 × 36,510.75
  4. Step 4: Simplify right side
    81,522.29x = 4,460,816,711.60
  5. Step 5: Solve for x
    x = 4,460,816,711.60/81,522.29
  6. Step 6: Final answer
    x = 54,718.98

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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.