Home / 54,840.18-75,679.11-29,689.50

Finding the Fourth Proportional to 54,840.18, 75,679.11 and 29,689.50

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Solution

The fourth proportional to 54,840.18, 75,679.11 and 29,689.50 is: 40,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,840.18 : 75,679.11 = 29,689.50 : x
  2. Step 2: Convert to fraction form
    54,840.18/75,679.11 = 29,689.50/x
  3. Step 3: Cross multiply
    54,840.18x = 75,679.11 × 29,689.50
  4. Step 4: Simplify right side
    54,840.18x = 2,246,874,936.35
  5. Step 5: Solve for x
    x = 2,246,874,936.35/54,840.18
  6. Step 6: Final answer
    x = 40,971.33

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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.