Home / 66,157.90-99,364.51-56,691.69

Finding the Fourth Proportional to 66,157.90, 99,364.51 and 56,691.69

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Solution

The fourth proportional to 66,157.90, 99,364.51 and 56,691.69 is: 85,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,157.90 : 99,364.51 = 56,691.69 : x
  2. Step 2: Convert to fraction form
    66,157.90/99,364.51 = 56,691.69/x
  3. Step 3: Cross multiply
    66,157.90x = 99,364.51 × 56,691.69
  4. Step 4: Simplify right side
    66,157.90x = 5,633,141,997.92
  5. Step 5: Solve for x
    x = 5,633,141,997.92/66,157.90
  6. Step 6: Final answer
    x = 85,146.93

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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.