Home / 87,902.70-121,305.73-47,616.46

Finding the Fourth Proportional to 87,902.70, 121,305.73 and 47,616.46

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Solution

The fourth proportional to 87,902.70, 121,305.73 and 47,616.46 is: 65,710.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,902.70 : 121,305.73 = 47,616.46 : x
  2. Step 2: Convert to fraction form
    87,902.70/121,305.73 = 47,616.46/x
  3. Step 3: Cross multiply
    87,902.70x = 121,305.73 × 47,616.46
  4. Step 4: Simplify right side
    87,902.70x = 5,776,149,314.54
  5. Step 5: Solve for x
    x = 5,776,149,314.54/87,902.70
  6. Step 6: Final answer
    x = 65,710.72

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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.