Home / 91,331.86-125,956.07-76,069.07

Finding the Fourth Proportional to 91,331.86, 125,956.07 and 76,069.07

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Solution

The fourth proportional to 91,331.86, 125,956.07 and 76,069.07 is: 104,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,331.86 : 125,956.07 = 76,069.07 : x
  2. Step 2: Convert to fraction form
    91,331.86/125,956.07 = 76,069.07/x
  3. Step 3: Cross multiply
    91,331.86x = 125,956.07 × 76,069.07
  4. Step 4: Simplify right side
    91,331.86x = 9,581,361,040.30
  5. Step 5: Solve for x
    x = 9,581,361,040.30/91,331.86
  6. Step 6: Final answer
    x = 104,907.11

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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.