Home / 81,470.15-122,047.60-45,823.17

Finding the Fourth Proportional to 81,470.15, 122,047.60 and 45,823.17

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Solution

The fourth proportional to 81,470.15, 122,047.60 and 45,823.17 is: 68,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,470.15 : 122,047.60 = 45,823.17 : x
  2. Step 2: Convert to fraction form
    81,470.15/122,047.60 = 45,823.17/x
  3. Step 3: Cross multiply
    81,470.15x = 122,047.60 × 45,823.17
  4. Step 4: Simplify right side
    81,470.15x = 5,592,607,312.65
  5. Step 5: Solve for x
    x = 5,592,607,312.65/81,470.15
  6. Step 6: Final answer
    x = 68,646.09

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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.