Home / 91,915.36-126,834.24-51,620

Finding the Fourth Proportional to 91,915.36, 126,834.24 and 51,620

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Solution

The fourth proportional to 91,915.36, 126,834.24 and 51,620 is: 71,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,915.36 : 126,834.24 = 51,620 : x
  2. Step 2: Convert to fraction form
    91,915.36/126,834.24 = 51,620/x
  3. Step 3: Cross multiply
    91,915.36x = 126,834.24 × 51,620
  4. Step 4: Simplify right side
    91,915.36x = 6,547,183,468.80
  5. Step 5: Solve for x
    x = 6,547,183,468.80/91,915.36
  6. Step 6: Final answer
    x = 71,230.57

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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.