Home / 87,485.98-120,730.40-49,760.23

Finding the Fourth Proportional to 87,485.98, 120,730.40 and 49,760.23

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Solution

The fourth proportional to 87,485.98, 120,730.40 and 49,760.23 is: 68,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,485.98 : 120,730.40 = 49,760.23 : x
  2. Step 2: Convert to fraction form
    87,485.98/120,730.40 = 49,760.23/x
  3. Step 3: Cross multiply
    87,485.98x = 120,730.40 × 49,760.23
  4. Step 4: Simplify right side
    87,485.98x = 6,007,571,868.34
  5. Step 5: Solve for x
    x = 6,007,571,868.34/87,485.98
  6. Step 6: Final answer
    x = 68,668.97

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1.5x scale

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.