Home / 83,747.54-115,567.80-51,919.40

Finding the Fourth Proportional to 83,747.54, 115,567.80 and 51,919.40

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Solution

The fourth proportional to 83,747.54, 115,567.80 and 51,919.40 is: 71,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,747.54 : 115,567.80 = 51,919.40 : x
  2. Step 2: Convert to fraction form
    83,747.54/115,567.80 = 51,919.40/x
  3. Step 3: Cross multiply
    83,747.54x = 115,567.80 × 51,919.40
  4. Step 4: Simplify right side
    83,747.54x = 6,000,210,257.48
  5. Step 5: Solve for x
    x = 6,000,210,257.48/83,747.54
  6. Step 6: Final answer
    x = 71,646.41

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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.