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Finding the Fourth Proportional to 83,865.39, 115,615.53 and 59,950.55

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Solution

The fourth proportional to 83,865.39, 115,615.53 and 59,950.55 is: 82,646.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,865.39 : 115,615.53 = 59,950.55 : x
  2. Step 2: Convert to fraction form
    83,865.39/115,615.53 = 59,950.55/x
  3. Step 3: Cross multiply
    83,865.39x = 115,615.53 × 59,950.55
  4. Step 4: Simplify right side
    83,865.39x = 6,931,214,033.96
  5. Step 5: Solve for x
    x = 6,931,214,033.96/83,865.39
  6. Step 6: Final answer
    x = 82,646.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.