Home / 88,158.45-121,658.90-47,872.88

Finding the Fourth Proportional to 88,158.45, 121,658.90 and 47,872.88

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Solution

The fourth proportional to 88,158.45, 121,658.90 and 47,872.88 is: 66,064.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,158.45 : 121,658.90 = 47,872.88 : x
  2. Step 2: Convert to fraction form
    88,158.45/121,658.90 = 47,872.88/x
  3. Step 3: Cross multiply
    88,158.45x = 121,658.90 × 47,872.88
  4. Step 4: Simplify right side
    88,158.45x = 5,824,161,072.97
  5. Step 5: Solve for x
    x = 5,824,161,072.97/88,158.45
  6. Step 6: Final answer
    x = 66,064.69

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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.