Home / 87,155.42-120,264.56-48,907.07

Finding the Fourth Proportional to 87,155.42, 120,264.56 and 48,907.07

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Solution

The fourth proportional to 87,155.42, 120,264.56 and 48,907.07 is: 67,486.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,155.42 : 120,264.56 = 48,907.07 : x
  2. Step 2: Convert to fraction form
    87,155.42/120,264.56 = 48,907.07/x
  3. Step 3: Cross multiply
    87,155.42x = 120,264.56 × 48,907.07
  4. Step 4: Simplify right side
    87,155.42x = 5,881,786,775.38
  5. Step 5: Solve for x
    x = 5,881,786,775.38/87,155.42
  6. Step 6: Final answer
    x = 67,486.19

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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.