Home / 87,477.26-120,719.12-49,237.56

Finding the Fourth Proportional to 87,477.26, 120,719.12 and 49,237.56

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Solution

The fourth proportional to 87,477.26, 120,719.12 and 49,237.56 is: 67,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,477.26 : 120,719.12 = 49,237.56 : x
  2. Step 2: Convert to fraction form
    87,477.26/120,719.12 = 49,237.56/x
  3. Step 3: Cross multiply
    87,477.26x = 120,719.12 × 49,237.56
  4. Step 4: Simplify right side
    87,477.26x = 5,943,914,667.96
  5. Step 5: Solve for x
    x = 5,943,914,667.96/87,477.26
  6. Step 6: Final answer
    x = 67,948.12

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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.