Home / 66,187.48-91,458.84-48,251.20

Finding the Fourth Proportional to 66,187.48, 91,458.84 and 48,251.20

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Solution

The fourth proportional to 66,187.48, 91,458.84 and 48,251.20 is: 66,674.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,187.48 : 91,458.84 = 48,251.20 : x
  2. Step 2: Convert to fraction form
    66,187.48/91,458.84 = 48,251.20/x
  3. Step 3: Cross multiply
    66,187.48x = 91,458.84 × 48,251.20
  4. Step 4: Simplify right side
    66,187.48x = 4,412,998,780.61
  5. Step 5: Solve for x
    x = 4,412,998,780.61/66,187.48
  6. Step 6: Final answer
    x = 66,674.22

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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.