Home / 87,595.34-120,881.56-47,309.11

Finding the Fourth Proportional to 87,595.34, 120,881.56 and 47,309.11

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Solution

The fourth proportional to 87,595.34, 120,881.56 and 47,309.11 is: 65,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,595.34 : 120,881.56 = 47,309.11 : x
  2. Step 2: Convert to fraction form
    87,595.34/120,881.56 = 47,309.11/x
  3. Step 3: Cross multiply
    87,595.34x = 120,881.56 × 47,309.11
  4. Step 4: Simplify right side
    87,595.34x = 5,718,799,019.01
  5. Step 5: Solve for x
    x = 5,718,799,019.01/87,595.34
  6. Step 6: Final answer
    x = 65,286.57

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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.