Home / 87,091.30-120,160.65-51,264.10

Finding the Fourth Proportional to 87,091.30, 120,160.65 and 51,264.10

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Solution

The fourth proportional to 87,091.30, 120,160.65 and 51,264.10 is: 70,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,091.30 : 120,160.65 = 51,264.10 : x
  2. Step 2: Convert to fraction form
    87,091.30/120,160.65 = 51,264.10/x
  3. Step 3: Cross multiply
    87,091.30x = 120,160.65 × 51,264.10
  4. Step 4: Simplify right side
    87,091.30x = 6,159,927,577.67
  5. Step 5: Solve for x
    x = 6,159,927,577.67/87,091.30
  6. Step 6: Final answer
    x = 70,729.54

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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.