Home / 77,380.20-116,332.74-61,784.46

Finding the Fourth Proportional to 77,380.20, 116,332.74 and 61,784.46

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Solution

The fourth proportional to 77,380.20, 116,332.74 and 61,784.46 is: 92,886.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,380.20 : 116,332.74 = 61,784.46 : x
  2. Step 2: Convert to fraction form
    77,380.20/116,332.74 = 61,784.46/x
  3. Step 3: Cross multiply
    77,380.20x = 116,332.74 × 61,784.46
  4. Step 4: Simplify right side
    77,380.20x = 7,187,555,521.22
  5. Step 5: Solve for x
    x = 7,187,555,521.22/77,380.20
  6. Step 6: Final answer
    x = 92,886.24

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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.