Home / 91,269.68-125,870.34-76,006.77

Finding the Fourth Proportional to 91,269.68, 125,870.34 and 76,006.77

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Solution

The fourth proportional to 91,269.68, 125,870.34 and 76,006.77 is: 104,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,269.68 : 125,870.34 = 76,006.77 : x
  2. Step 2: Convert to fraction form
    91,269.68/125,870.34 = 76,006.77/x
  3. Step 3: Cross multiply
    91,269.68x = 125,870.34 × 76,006.77
  4. Step 4: Simplify right side
    91,269.68x = 9,566,997,982.20
  5. Step 5: Solve for x
    x = 9,566,997,982.20/91,269.68
  6. Step 6: Final answer
    x = 104,821.21

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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.