Home / 91,956.12-126,903.20-51,669.76

Finding the Fourth Proportional to 91,956.12, 126,903.20 and 51,669.76

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Solution

The fourth proportional to 91,956.12, 126,903.20 and 51,669.76 is: 71,306.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,956.12 : 126,903.20 = 51,669.76 : x
  2. Step 2: Convert to fraction form
    91,956.12/126,903.20 = 51,669.76/x
  3. Step 3: Cross multiply
    91,956.12x = 126,903.20 × 51,669.76
  4. Step 4: Simplify right side
    91,956.12x = 6,557,057,887.23
  5. Step 5: Solve for x
    x = 6,557,057,887.23/91,956.12
  6. Step 6: Final answer
    x = 71,306.38

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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.