Home / 66,207.45-99,316.85-18,822.72

Finding the Fourth Proportional to 66,207.45, 99,316.85 and 18,822.72

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Solution

The fourth proportional to 66,207.45, 99,316.85 and 18,822.72 is: 28,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,207.45 : 99,316.85 = 18,822.72 : x
  2. Step 2: Convert to fraction form
    66,207.45/99,316.85 = 18,822.72/x
  3. Step 3: Cross multiply
    66,207.45x = 99,316.85 × 18,822.72
  4. Step 4: Simplify right side
    66,207.45x = 1,869,413,164.72
  5. Step 5: Solve for x
    x = 1,869,413,164.72/66,207.45
  6. Step 6: Final answer
    x = 28,235.69

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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.