Home / 83,513.60-125,266.08-21,184.64

Finding the Fourth Proportional to 83,513.60, 125,266.08 and 21,184.64

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Solution

The fourth proportional to 83,513.60, 125,266.08 and 21,184.64 is: 31,775.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,513.60 : 125,266.08 = 21,184.64 : x
  2. Step 2: Convert to fraction form
    83,513.60/125,266.08 = 21,184.64/x
  3. Step 3: Cross multiply
    83,513.60x = 125,266.08 × 21,184.64
  4. Step 4: Simplify right side
    83,513.60x = 2,653,716,809.01
  5. Step 5: Solve for x
    x = 2,653,716,809.01/83,513.60
  6. Step 6: Final answer
    x = 31,775.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.