Home / 87,600.72-120,890.16-49,875.12

Finding the Fourth Proportional to 87,600.72, 120,890.16 and 49,875.12

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Solution

The fourth proportional to 87,600.72, 120,890.16 and 49,875.12 is: 68,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,600.72 : 120,890.16 = 49,875.12 : x
  2. Step 2: Convert to fraction form
    87,600.72/120,890.16 = 49,875.12/x
  3. Step 3: Cross multiply
    87,600.72x = 120,890.16 × 49,875.12
  4. Step 4: Simplify right side
    87,600.72x = 6,029,411,236.82
  5. Step 5: Solve for x
    x = 6,029,411,236.82/87,600.72
  6. Step 6: Final answer
    x = 68,828.33

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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.