Home / 80,615.08-120,721.50-50,943.40

Finding the Fourth Proportional to 80,615.08, 120,721.50 and 50,943.40

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Solution

The fourth proportional to 80,615.08, 120,721.50 and 50,943.40 is: 76,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,615.08 : 120,721.50 = 50,943.40 : x
  2. Step 2: Convert to fraction form
    80,615.08/120,721.50 = 50,943.40/x
  3. Step 3: Cross multiply
    80,615.08x = 120,721.50 × 50,943.40
  4. Step 4: Simplify right side
    80,615.08x = 6,149,963,663.10
  5. Step 5: Solve for x
    x = 6,149,963,663.10/80,615.08
  6. Step 6: Final answer
    x = 76,288.01

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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.