Home / 48,111.40-72,167.10-30,658.60

Finding the Fourth Proportional to 48,111.40, 72,167.10 and 30,658.60

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Solution

The fourth proportional to 48,111.40, 72,167.10 and 30,658.60 is: 45,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,111.40 : 72,167.10 = 30,658.60 : x
  2. Step 2: Convert to fraction form
    48,111.40/72,167.10 = 30,658.60/x
  3. Step 3: Cross multiply
    48,111.40x = 72,167.10 × 30,658.60
  4. Step 4: Simplify right side
    48,111.40x = 2,212,542,252.06
  5. Step 5: Solve for x
    x = 2,212,542,252.06/48,111.40
  6. Step 6: Final answer
    x = 45,987.90

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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.