Home / 80,901.84-121,274.40-30,943.50

Finding the Fourth Proportional to 80,901.84, 121,274.40 and 30,943.50

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Solution

The fourth proportional to 80,901.84, 121,274.40 and 30,943.50 is: 46,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,901.84 : 121,274.40 = 30,943.50 : x
  2. Step 2: Convert to fraction form
    80,901.84/121,274.40 = 30,943.50/x
  3. Step 3: Cross multiply
    80,901.84x = 121,274.40 × 30,943.50
  4. Step 4: Simplify right side
    80,901.84x = 3,752,654,396.40
  5. Step 5: Solve for x
    x = 3,752,654,396.40/80,901.84
  6. Step 6: Final answer
    x = 46,385.28

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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.