Home / 91,672.06-126,513.29-51,385.84

Finding the Fourth Proportional to 91,672.06, 126,513.29 and 51,385.84

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Solution

The fourth proportional to 91,672.06, 126,513.29 and 51,385.84 is: 70,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,672.06 : 126,513.29 = 51,385.84 : x
  2. Step 2: Convert to fraction form
    91,672.06/126,513.29 = 51,385.84/x
  3. Step 3: Cross multiply
    91,672.06x = 126,513.29 × 51,385.84
  4. Step 4: Simplify right side
    91,672.06x = 6,500,991,677.81
  5. Step 5: Solve for x
    x = 6,500,991,677.81/91,672.06
  6. Step 6: Final answer
    x = 70,915.74

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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.