Home / 90,915.04-136,328.82-38,295.82

Finding the Fourth Proportional to 90,915.04, 136,328.82 and 38,295.82

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Solution

The fourth proportional to 90,915.04, 136,328.82 and 38,295.82 is: 57,425.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,915.04 : 136,328.82 = 38,295.82 : x
  2. Step 2: Convert to fraction form
    90,915.04/136,328.82 = 38,295.82/x
  3. Step 3: Cross multiply
    90,915.04x = 136,328.82 × 38,295.82
  4. Step 4: Simplify right side
    90,915.04x = 5,220,823,951.53
  5. Step 5: Solve for x
    x = 5,220,823,951.53/90,915.04
  6. Step 6: Final answer
    x = 57,425.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.