Home / 91,388.69-126,115.67-51,102.53

Finding the Fourth Proportional to 91,388.69, 126,115.67 and 51,102.53

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Solution

The fourth proportional to 91,388.69, 126,115.67 and 51,102.53 is: 70,521.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,388.69 : 126,115.67 = 51,102.53 : x
  2. Step 2: Convert to fraction form
    91,388.69/126,115.67 = 51,102.53/x
  3. Step 3: Cross multiply
    91,388.69x = 126,115.67 × 51,102.53
  4. Step 4: Simplify right side
    91,388.69x = 6,444,829,306.82
  5. Step 5: Solve for x
    x = 6,444,829,306.82/91,388.69
  6. Step 6: Final answer
    x = 70,521.09

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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.