Home / 92,915.10-128,220.68-54,150.44

Finding the Fourth Proportional to 92,915.10, 128,220.68 and 54,150.44

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Solution

The fourth proportional to 92,915.10, 128,220.68 and 54,150.44 is: 74,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,915.10 : 128,220.68 = 54,150.44 : x
  2. Step 2: Convert to fraction form
    92,915.10/128,220.68 = 54,150.44/x
  3. Step 3: Cross multiply
    92,915.10x = 128,220.68 × 54,150.44
  4. Step 4: Simplify right side
    92,915.10x = 6,943,206,239.10
  5. Step 5: Solve for x
    x = 6,943,206,239.10/92,915.10
  6. Step 6: Final answer
    x = 74,726.35

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1.5x scale

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.