Home / 87,723-121,057.53-49,482.42

Finding the Fourth Proportional to 87,723, 121,057.53 and 49,482.42

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Solution

The fourth proportional to 87,723, 121,057.53 and 49,482.42 is: 68,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,723 : 121,057.53 = 49,482.42 : x
  2. Step 2: Convert to fraction form
    87,723/121,057.53 = 49,482.42/x
  3. Step 3: Cross multiply
    87,723x = 121,057.53 × 49,482.42
  4. Step 4: Simplify right side
    87,723x = 5,990,219,543.62
  5. Step 5: Solve for x
    x = 5,990,219,543.62/87,723
  6. Step 6: Final answer
    x = 68,285.62

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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.