Home / 85,212.30-127,672.65-54,011.10

Finding the Fourth Proportional to 85,212.30, 127,672.65 and 54,011.10

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Solution

The fourth proportional to 85,212.30, 127,672.65 and 54,011.10 is: 80,924.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212.30 : 127,672.65 = 54,011.10 : x
  2. Step 2: Convert to fraction form
    85,212.30/127,672.65 = 54,011.10/x
  3. Step 3: Cross multiply
    85,212.30x = 127,672.65 × 54,011.10
  4. Step 4: Simplify right side
    85,212.30x = 6,895,740,266.42
  5. Step 5: Solve for x
    x = 6,895,740,266.42/85,212.30
  6. Step 6: Final answer
    x = 80,924.24

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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.