Home / 77,770.28-116,641.66-21,614.36

Finding the Fourth Proportional to 77,770.28, 116,641.66 and 21,614.36

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Solution

The fourth proportional to 77,770.28, 116,641.66 and 21,614.36 is: 32,417.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,770.28 : 116,641.66 = 21,614.36 : x
  2. Step 2: Convert to fraction form
    77,770.28/116,641.66 = 21,614.36/x
  3. Step 3: Cross multiply
    77,770.28x = 116,641.66 × 21,614.36
  4. Step 4: Simplify right side
    77,770.28x = 2,521,134,830.24
  5. Step 5: Solve for x
    x = 2,521,134,830.24/77,770.28
  6. Step 6: Final answer
    x = 32,417.72

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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.