Home / 87,215.46-120,347.40-48,969.89

Finding the Fourth Proportional to 87,215.46, 120,347.40 and 48,969.89

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Solution

The fourth proportional to 87,215.46, 120,347.40 and 48,969.89 is: 67,572.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,215.46 : 120,347.40 = 48,969.89 : x
  2. Step 2: Convert to fraction form
    87,215.46/120,347.40 = 48,969.89/x
  3. Step 3: Cross multiply
    87,215.46x = 120,347.40 × 48,969.89
  4. Step 4: Simplify right side
    87,215.46x = 5,893,398,939.79
  5. Step 5: Solve for x
    x = 5,893,398,939.79/87,215.46
  6. Step 6: Final answer
    x = 67,572.87

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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.