Home / 91,787.28-126,658.68-51,495.60

Finding the Fourth Proportional to 91,787.28, 126,658.68 and 51,495.60

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Solution

The fourth proportional to 91,787.28, 126,658.68 and 51,495.60 is: 71,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,787.28 : 126,658.68 = 51,495.60 : x
  2. Step 2: Convert to fraction form
    91,787.28/126,658.68 = 51,495.60/x
  3. Step 3: Cross multiply
    91,787.28x = 126,658.68 × 51,495.60
  4. Step 4: Simplify right side
    91,787.28x = 6,522,364,721.81
  5. Step 5: Solve for x
    x = 6,522,364,721.81/91,787.28
  6. Step 6: Final answer
    x = 71,059.57

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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.