Home / 77,630.14-116,445.21-61,974.46

Finding the Fourth Proportional to 77,630.14, 116,445.21 and 61,974.46

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Solution

The fourth proportional to 77,630.14, 116,445.21 and 61,974.46 is: 92,961.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,630.14 : 116,445.21 = 61,974.46 : x
  2. Step 2: Convert to fraction form
    77,630.14/116,445.21 = 61,974.46/x
  3. Step 3: Cross multiply
    77,630.14x = 116,445.21 × 61,974.46
  4. Step 4: Simplify right side
    77,630.14x = 7,216,629,009.34
  5. Step 5: Solve for x
    x = 7,216,629,009.34/77,630.14
  6. Step 6: Final answer
    x = 92,961.69

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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.