Home / 77,965.38-116,986.95-28,056.65

Finding the Fourth Proportional to 77,965.38, 116,986.95 and 28,056.65

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Solution

The fourth proportional to 77,965.38, 116,986.95 and 28,056.65 is: 42,098.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,965.38 : 116,986.95 = 28,056.65 : x
  2. Step 2: Convert to fraction form
    77,965.38/116,986.95 = 28,056.65/x
  3. Step 3: Cross multiply
    77,965.38x = 116,986.95 × 28,056.65
  4. Step 4: Simplify right side
    77,965.38x = 3,282,261,325.78
  5. Step 5: Solve for x
    x = 3,282,261,325.78/77,965.38
  6. Step 6: Final answer
    x = 42,098.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.