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Finding the Fourth Proportional to 83,519.55, 125,262.32 and 30,916.53

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Solution

The fourth proportional to 83,519.55, 125,262.32 and 30,916.53 is: 46,368.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,519.55 : 125,262.32 = 30,916.53 : x
  2. Step 2: Convert to fraction form
    83,519.55/125,262.32 = 30,916.53/x
  3. Step 3: Cross multiply
    83,519.55x = 125,262.32 × 30,916.53
  4. Step 4: Simplify right side
    83,519.55x = 3,872,676,119.57
  5. Step 5: Solve for x
    x = 3,872,676,119.57/83,519.55
  6. Step 6: Final answer
    x = 46,368.50

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