Home / 87,451.95-120,682.71-49,211.35

Finding the Fourth Proportional to 87,451.95, 120,682.71 and 49,211.35

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Solution

The fourth proportional to 87,451.95, 120,682.71 and 49,211.35 is: 67,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,451.95 : 120,682.71 = 49,211.35 : x
  2. Step 2: Convert to fraction form
    87,451.95/120,682.71 = 49,211.35/x
  3. Step 3: Cross multiply
    87,451.95x = 120,682.71 × 49,211.35
  4. Step 4: Simplify right side
    87,451.95x = 5,938,958,779.05
  5. Step 5: Solve for x
    x = 5,938,958,779.05/87,451.95
  6. Step 6: Final answer
    x = 67,911.10

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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.