Home / 90,968.76-125,545.14-55,167.84

Finding the Fourth Proportional to 90,968.76, 125,545.14 and 55,167.84

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Solution

The fourth proportional to 90,968.76, 125,545.14 and 55,167.84 is: 76,136.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,968.76 : 125,545.14 = 55,167.84 : x
  2. Step 2: Convert to fraction form
    90,968.76/125,545.14 = 55,167.84/x
  3. Step 3: Cross multiply
    90,968.76x = 125,545.14 × 55,167.84
  4. Step 4: Simplify right side
    90,968.76x = 6,926,054,196.30
  5. Step 5: Solve for x
    x = 6,926,054,196.30/90,968.76
  6. Step 6: Final answer
    x = 76,136.62

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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.