Home / 90,098.87-124,339.03-49,815.23

Finding the Fourth Proportional to 90,098.87, 124,339.03 and 49,815.23

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Solution

The fourth proportional to 90,098.87, 124,339.03 and 49,815.23 is: 68,746.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,098.87 : 124,339.03 = 49,815.23 : x
  2. Step 2: Convert to fraction form
    90,098.87/124,339.03 = 49,815.23/x
  3. Step 3: Cross multiply
    90,098.87x = 124,339.03 × 49,815.23
  4. Step 4: Simplify right side
    90,098.87x = 6,193,977,610.81
  5. Step 5: Solve for x
    x = 6,193,977,610.81/90,098.87
  6. Step 6: Final answer
    x = 68,746.45

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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.