Home / 91,408.16-126,174.98-62,822.45

Finding the Fourth Proportional to 91,408.16, 126,174.98 and 62,822.45

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Solution

The fourth proportional to 91,408.16, 126,174.98 and 62,822.45 is: 86,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,408.16 : 126,174.98 = 62,822.45 : x
  2. Step 2: Convert to fraction form
    91,408.16/126,174.98 = 62,822.45/x
  3. Step 3: Cross multiply
    91,408.16x = 126,174.98 × 62,822.45
  4. Step 4: Simplify right side
    91,408.16x = 7,926,621,844.79
  5. Step 5: Solve for x
    x = 7,926,621,844.79/91,408.16
  6. Step 6: Final answer
    x = 86,716.78

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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.