Home / 83,530.67-125,148.33-55,383.98

Finding the Fourth Proportional to 83,530.67, 125,148.33 and 55,383.98

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Solution

The fourth proportional to 83,530.67, 125,148.33 and 55,383.98 is: 82,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,530.67 : 125,148.33 = 55,383.98 : x
  2. Step 2: Convert to fraction form
    83,530.67/125,148.33 = 55,383.98/x
  3. Step 3: Cross multiply
    83,530.67x = 125,148.33 × 55,383.98
  4. Step 4: Simplify right side
    83,530.67x = 6,931,211,980.01
  5. Step 5: Solve for x
    x = 6,931,211,980.01/83,530.67
  6. Step 6: Final answer
    x = 82,978.05

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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.