Home / 87,965.46-131,985.09-38,019.85

Finding the Fourth Proportional to 87,965.46, 131,985.09 and 38,019.85

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Solution

The fourth proportional to 87,965.46, 131,985.09 and 38,019.85 is: 57,045.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,965.46 : 131,985.09 = 38,019.85 : x
  2. Step 2: Convert to fraction form
    87,965.46/131,985.09 = 38,019.85/x
  3. Step 3: Cross multiply
    87,965.46x = 131,985.09 × 38,019.85
  4. Step 4: Simplify right side
    87,965.46x = 5,018,052,994.07
  5. Step 5: Solve for x
    x = 5,018,052,994.07/87,965.46
  6. Step 6: Final answer
    x = 57,045.72

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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.