Home / 87,298.12-120,474.30-49,064.32

Finding the Fourth Proportional to 87,298.12, 120,474.30 and 49,064.32

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Solution

The fourth proportional to 87,298.12, 120,474.30 and 49,064.32 is: 67,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,298.12 : 120,474.30 = 49,064.32 : x
  2. Step 2: Convert to fraction form
    87,298.12/120,474.30 = 49,064.32/x
  3. Step 3: Cross multiply
    87,298.12x = 120,474.30 × 49,064.32
  4. Step 4: Simplify right side
    87,298.12x = 5,910,989,606.98
  5. Step 5: Solve for x
    x = 5,910,989,606.98/87,298.12
  6. Step 6: Final answer
    x = 67,710.39

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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.