Home / 83,515.62-115,096.95-59,317.65

Finding the Fourth Proportional to 83,515.62, 115,096.95 and 59,317.65

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Solution

The fourth proportional to 83,515.62, 115,096.95 and 59,317.65 is: 81,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,515.62 : 115,096.95 = 59,317.65 : x
  2. Step 2: Convert to fraction form
    83,515.62/115,096.95 = 59,317.65/x
  3. Step 3: Cross multiply
    83,515.62x = 115,096.95 × 59,317.65
  4. Step 4: Simplify right side
    83,515.62x = 6,827,280,596.17
  5. Step 5: Solve for x
    x = 6,827,280,596.17/83,515.62
  6. Step 6: Final answer
    x = 81,748.55

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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.