Home / 77,770.10-116,657.28-21,610.38

Finding the Fourth Proportional to 77,770.10, 116,657.28 and 21,610.38

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Solution

The fourth proportional to 77,770.10, 116,657.28 and 21,610.38 is: 32,416.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,770.10 : 116,657.28 = 21,610.38 : x
  2. Step 2: Convert to fraction form
    77,770.10/116,657.28 = 21,610.38/x
  3. Step 3: Cross multiply
    77,770.10x = 116,657.28 × 21,610.38
  4. Step 4: Simplify right side
    77,770.10x = 2,521,008,150.57
  5. Step 5: Solve for x
    x = 2,521,008,150.57/77,770.10
  6. Step 6: Final answer
    x = 32,416.16

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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.