Home / 87,510.38-120,764.93-49,784.63

Finding the Fourth Proportional to 87,510.38, 120,764.93 and 49,784.63

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Solution

The fourth proportional to 87,510.38, 120,764.93 and 49,784.63 is: 68,703.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,510.38 : 120,764.93 = 49,784.63 : x
  2. Step 2: Convert to fraction form
    87,510.38/120,764.93 = 49,784.63/x
  3. Step 3: Cross multiply
    87,510.38x = 120,764.93 × 49,784.63
  4. Step 4: Simplify right side
    87,510.38x = 6,012,236,504.28
  5. Step 5: Solve for x
    x = 6,012,236,504.28/87,510.38
  6. Step 6: Final answer
    x = 68,703.13

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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.