Home / 54,018.90-74,516.13-31,658.58

Finding the Fourth Proportional to 54,018.90, 74,516.13 and 31,658.58

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Solution

The fourth proportional to 54,018.90, 74,516.13 and 31,658.58 is: 43,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,018.90 : 74,516.13 = 31,658.58 : x
  2. Step 2: Convert to fraction form
    54,018.90/74,516.13 = 31,658.58/x
  3. Step 3: Cross multiply
    54,018.90x = 74,516.13 × 31,658.58
  4. Step 4: Simplify right side
    54,018.90x = 2,359,074,862.90
  5. Step 5: Solve for x
    x = 2,359,074,862.90/54,018.90
  6. Step 6: Final answer
    x = 43,671.29

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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.