Home / 91,389.66-126,149.48-62,803.96

Finding the Fourth Proportional to 91,389.66, 126,149.48 and 62,803.96

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Solution

The fourth proportional to 91,389.66, 126,149.48 and 62,803.96 is: 86,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,389.66 : 126,149.48 = 62,803.96 : x
  2. Step 2: Convert to fraction form
    91,389.66/126,149.48 = 62,803.96/x
  3. Step 3: Cross multiply
    91,389.66x = 126,149.48 × 62,803.96
  4. Step 4: Simplify right side
    91,389.66x = 7,922,686,895.94
  5. Step 5: Solve for x
    x = 7,922,686,895.94/91,389.66
  6. Step 6: Final answer
    x = 86,691.28

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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.