Home / 91,827.64-126,775.02-61,656.76

Finding the Fourth Proportional to 91,827.64, 126,775.02 and 61,656.76

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Solution

The fourth proportional to 91,827.64, 126,775.02 and 61,656.76 is: 85,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,827.64 : 126,775.02 = 61,656.76 : x
  2. Step 2: Convert to fraction form
    91,827.64/126,775.02 = 61,656.76/x
  3. Step 3: Cross multiply
    91,827.64x = 126,775.02 × 61,656.76
  4. Step 4: Simplify right side
    91,827.64x = 7,816,536,982.14
  5. Step 5: Solve for x
    x = 7,816,536,982.14/91,827.64
  6. Step 6: Final answer
    x = 85,121.83

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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.