Home / 83,806.48-115,818.90-68,675.32

Finding the Fourth Proportional to 83,806.48, 115,818.90 and 68,675.32

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Solution

The fourth proportional to 83,806.48, 115,818.90 and 68,675.32 is: 94,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,806.48 : 115,818.90 = 68,675.32 : x
  2. Step 2: Convert to fraction form
    83,806.48/115,818.90 = 68,675.32/x
  3. Step 3: Cross multiply
    83,806.48x = 115,818.90 × 68,675.32
  4. Step 4: Simplify right side
    83,806.48x = 7,953,900,019.55
  5. Step 5: Solve for x
    x = 7,953,900,019.55/83,806.48
  6. Step 6: Final answer
    x = 94,907.94

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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.