Home / 87,010.70-120,064.05-53,006.85

Finding the Fourth Proportional to 87,010.70, 120,064.05 and 53,006.85

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Solution

The fourth proportional to 87,010.70, 120,064.05 and 53,006.85 is: 73,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,010.70 : 120,064.05 = 53,006.85 : x
  2. Step 2: Convert to fraction form
    87,010.70/120,064.05 = 53,006.85/x
  3. Step 3: Cross multiply
    87,010.70x = 120,064.05 × 53,006.85
  4. Step 4: Simplify right side
    87,010.70x = 6,364,217,088.74
  5. Step 5: Solve for x
    x = 6,364,217,088.74/87,010.70
  6. Step 6: Final answer
    x = 73,142.93

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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.