Home / 77,740.40-116,618.92-21,580.74

Finding the Fourth Proportional to 77,740.40, 116,618.92 and 21,580.74

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Solution

The fourth proportional to 77,740.40, 116,618.92 and 21,580.74 is: 32,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,740.40 : 116,618.92 = 21,580.74 : x
  2. Step 2: Convert to fraction form
    77,740.40/116,618.92 = 21,580.74/x
  3. Step 3: Cross multiply
    77,740.40x = 116,618.92 × 21,580.74
  4. Step 4: Simplify right side
    77,740.40x = 2,516,722,591.60
  5. Step 5: Solve for x
    x = 2,516,722,591.60/77,740.40
  6. Step 6: Final answer
    x = 32,373.42

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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.