Home / 87,521.68-120,782.70-49,798.36

Finding the Fourth Proportional to 87,521.68, 120,782.70 and 49,798.36

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Solution

The fourth proportional to 87,521.68, 120,782.70 and 49,798.36 is: 68,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,521.68 : 120,782.70 = 49,798.36 : x
  2. Step 2: Convert to fraction form
    87,521.68/120,782.70 = 49,798.36/x
  3. Step 3: Cross multiply
    87,521.68x = 120,782.70 × 49,798.36
  4. Step 4: Simplify right side
    87,521.68x = 6,014,780,376.37
  5. Step 5: Solve for x
    x = 6,014,780,376.37/87,521.68
  6. Step 6: Final answer
    x = 68,723.32

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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.