Home / 75,543.12-104,273.28-51,660.72

Finding the Fourth Proportional to 75,543.12, 104,273.28 and 51,660.72

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Solution

The fourth proportional to 75,543.12, 104,273.28 and 51,660.72 is: 71,308.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,543.12 : 104,273.28 = 51,660.72 : x
  2. Step 2: Convert to fraction form
    75,543.12/104,273.28 = 51,660.72/x
  3. Step 3: Cross multiply
    75,543.12x = 104,273.28 × 51,660.72
  4. Step 4: Simplify right side
    75,543.12x = 5,386,832,721.56
  5. Step 5: Solve for x
    x = 5,386,832,721.56/75,543.12
  6. Step 6: Final answer
    x = 71,308.05

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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.