Home / 66,261.68-99,381.36-18,873.44

Finding the Fourth Proportional to 66,261.68, 99,381.36 and 18,873.44

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Solution

The fourth proportional to 66,261.68, 99,381.36 and 18,873.44 is: 28,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,261.68 : 99,381.36 = 18,873.44 : x
  2. Step 2: Convert to fraction form
    66,261.68/99,381.36 = 18,873.44/x
  3. Step 3: Cross multiply
    66,261.68x = 99,381.36 × 18,873.44
  4. Step 4: Simplify right side
    66,261.68x = 1,875,668,135.08
  5. Step 5: Solve for x
    x = 1,875,668,135.08/66,261.68
  6. Step 6: Final answer
    x = 28,306.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.