Home / 87,272.84-120,436.27-50,981.40

Finding the Fourth Proportional to 87,272.84, 120,436.27 and 50,981.40

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Solution

The fourth proportional to 87,272.84, 120,436.27 and 50,981.40 is: 70,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,272.84 : 120,436.27 = 50,981.40 : x
  2. Step 2: Convert to fraction form
    87,272.84/120,436.27 = 50,981.40/x
  3. Step 3: Cross multiply
    87,272.84x = 120,436.27 × 50,981.40
  4. Step 4: Simplify right side
    87,272.84x = 6,140,009,527.92
  5. Step 5: Solve for x
    x = 6,140,009,527.92/87,272.84
  6. Step 6: Final answer
    x = 70,354.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.