Home / 61,274.20-91,911.30-51,251.80

Finding the Fourth Proportional to 61,274.20, 91,911.30 and 51,251.80

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Solution

The fourth proportional to 61,274.20, 91,911.30 and 51,251.80 is: 76,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,274.20 : 91,911.30 = 51,251.80 : x
  2. Step 2: Convert to fraction form
    61,274.20/91,911.30 = 51,251.80/x
  3. Step 3: Cross multiply
    61,274.20x = 91,911.30 × 51,251.80
  4. Step 4: Simplify right side
    61,274.20x = 4,710,619,565.34
  5. Step 5: Solve for x
    x = 4,710,619,565.34/61,274.20
  6. Step 6: Final answer
    x = 76,877.70

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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.