Home / 91,985.52-126,938.88-51,706.12

Finding the Fourth Proportional to 91,985.52, 126,938.88 and 51,706.12

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Solution

The fourth proportional to 91,985.52, 126,938.88 and 51,706.12 is: 71,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,985.52 : 126,938.88 = 51,706.12 : x
  2. Step 2: Convert to fraction form
    91,985.52/126,938.88 = 51,706.12/x
  3. Step 3: Cross multiply
    91,985.52x = 126,938.88 × 51,706.12
  4. Step 4: Simplify right side
    91,985.52x = 6,563,516,961.95
  5. Step 5: Solve for x
    x = 6,563,516,961.95/91,985.52
  6. Step 6: Final answer
    x = 71,353.81

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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.