Home / 91,521.41-137,229.55-48,774.21

Finding the Fourth Proportional to 91,521.41, 137,229.55 and 48,774.21

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Solution

The fourth proportional to 91,521.41, 137,229.55 and 48,774.21 is: 73,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,521.41 : 137,229.55 = 48,774.21 : x
  2. Step 2: Convert to fraction form
    91,521.41/137,229.55 = 48,774.21/x
  3. Step 3: Cross multiply
    91,521.41x = 137,229.55 × 48,774.21
  4. Step 4: Simplify right side
    91,521.41x = 6,693,261,959.89
  5. Step 5: Solve for x
    x = 6,693,261,959.89/91,521.41
  6. Step 6: Final answer
    x = 73,133.30

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1.5x scale

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.