Home / 83,948.18-115,613.64-69,669.50

Finding the Fourth Proportional to 83,948.18, 115,613.64 and 69,669.50

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Solution

The fourth proportional to 83,948.18, 115,613.64 and 69,669.50 is: 95,949.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,948.18 : 115,613.64 = 69,669.50 : x
  2. Step 2: Convert to fraction form
    83,948.18/115,613.64 = 69,669.50/x
  3. Step 3: Cross multiply
    83,948.18x = 115,613.64 × 69,669.50
  4. Step 4: Simplify right side
    83,948.18x = 8,054,744,491.98
  5. Step 5: Solve for x
    x = 8,054,744,491.98/83,948.18
  6. Step 6: Final answer
    x = 95,949.01

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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.