Home / 87,686.44-131,477.09-42,619.04

Finding the Fourth Proportional to 87,686.44, 131,477.09 and 42,619.04

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Solution

The fourth proportional to 87,686.44, 131,477.09 and 42,619.04 is: 63,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,686.44 : 131,477.09 = 42,619.04 : x
  2. Step 2: Convert to fraction form
    87,686.44/131,477.09 = 42,619.04/x
  3. Step 3: Cross multiply
    87,686.44x = 131,477.09 × 42,619.04
  4. Step 4: Simplify right side
    87,686.44x = 5,603,427,357.79
  5. Step 5: Solve for x
    x = 5,603,427,357.79/87,686.44
  6. Step 6: Final answer
    x = 63,903.01

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1.5x scale

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.