Home / 91,672.48-126,515.76-51,385.60

Finding the Fourth Proportional to 91,672.48, 126,515.76 and 51,385.60

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Solution

The fourth proportional to 91,672.48, 126,515.76 and 51,385.60 is: 70,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,672.48 : 126,515.76 = 51,385.60 : x
  2. Step 2: Convert to fraction form
    91,672.48/126,515.76 = 51,385.60/x
  3. Step 3: Cross multiply
    91,672.48x = 126,515.76 × 51,385.60
  4. Step 4: Simplify right side
    91,672.48x = 6,501,088,237.06
  5. Step 5: Solve for x
    x = 6,501,088,237.06/91,672.48
  6. Step 6: Final answer
    x = 70,916.47

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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.