Home / 91,818.16-126,709.06-51,544.90

Finding the Fourth Proportional to 91,818.16, 126,709.06 and 51,544.90

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Solution

The fourth proportional to 91,818.16, 126,709.06 and 51,544.90 is: 71,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,818.16 : 126,709.06 = 51,544.90 : x
  2. Step 2: Convert to fraction form
    91,818.16/126,709.06 = 51,544.90/x
  3. Step 3: Cross multiply
    91,818.16x = 126,709.06 × 51,544.90
  4. Step 4: Simplify right side
    91,818.16x = 6,531,205,826.79
  5. Step 5: Solve for x
    x = 6,531,205,826.79/91,818.16
  6. Step 6: Final answer
    x = 71,131.96

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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.