Home / 90,006.64-124,209.40-49,719.60

Finding the Fourth Proportional to 90,006.64, 124,209.40 and 49,719.60

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Solution

The fourth proportional to 90,006.64, 124,209.40 and 49,719.60 is: 68,613.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,006.64 : 124,209.40 = 49,719.60 : x
  2. Step 2: Convert to fraction form
    90,006.64/124,209.40 = 49,719.60/x
  3. Step 3: Cross multiply
    90,006.64x = 124,209.40 × 49,719.60
  4. Step 4: Simplify right side
    90,006.64x = 6,175,641,684.24
  5. Step 5: Solve for x
    x = 6,175,641,684.24/90,006.64
  6. Step 6: Final answer
    x = 68,613.18

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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.