Home / 81,273.65-112,180.17-47,288.70

Finding the Fourth Proportional to 81,273.65, 112,180.17 and 47,288.70

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Solution

The fourth proportional to 81,273.65, 112,180.17 and 47,288.70 is: 65,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,273.65 : 112,180.17 = 47,288.70 : x
  2. Step 2: Convert to fraction form
    81,273.65/112,180.17 = 47,288.70/x
  3. Step 3: Cross multiply
    81,273.65x = 112,180.17 × 47,288.70
  4. Step 4: Simplify right side
    81,273.65x = 5,304,854,405.08
  5. Step 5: Solve for x
    x = 5,304,854,405.08/81,273.65
  6. Step 6: Final answer
    x = 65,271.52

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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.