Home / 87,924.15-121,335.17-47,638.94

Finding the Fourth Proportional to 87,924.15, 121,335.17 and 47,638.94

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Solution

The fourth proportional to 87,924.15, 121,335.17 and 47,638.94 is: 65,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,924.15 : 121,335.17 = 47,638.94 : x
  2. Step 2: Convert to fraction form
    87,924.15/121,335.17 = 47,638.94/x
  3. Step 3: Cross multiply
    87,924.15x = 121,335.17 × 47,638.94
  4. Step 4: Simplify right side
    87,924.15x = 5,780,278,038.65
  5. Step 5: Solve for x
    x = 5,780,278,038.65/87,924.15
  6. Step 6: Final answer
    x = 65,741.64

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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.