Home / 90,293.10-124,542.81-61,949.58

Finding the Fourth Proportional to 90,293.10, 124,542.81 and 61,949.58

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Solution

The fourth proportional to 90,293.10, 124,542.81 and 61,949.58 is: 85,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,293.10 : 124,542.81 = 61,949.58 : x
  2. Step 2: Convert to fraction form
    90,293.10/124,542.81 = 61,949.58/x
  3. Step 3: Cross multiply
    90,293.10x = 124,542.81 × 61,949.58
  4. Step 4: Simplify right side
    90,293.10x = 7,715,374,771.52
  5. Step 5: Solve for x
    x = 7,715,374,771.52/90,293.10
  6. Step 6: Final answer
    x = 85,448.11

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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.