Home / 87,328.56-120,506.22-51,520.08

Finding the Fourth Proportional to 87,328.56, 120,506.22 and 51,520.08

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Solution

The fourth proportional to 87,328.56, 120,506.22 and 51,520.08 is: 71,093.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,328.56 : 120,506.22 = 51,520.08 : x
  2. Step 2: Convert to fraction form
    87,328.56/120,506.22 = 51,520.08/x
  3. Step 3: Cross multiply
    87,328.56x = 120,506.22 × 51,520.08
  4. Step 4: Simplify right side
    87,328.56x = 6,208,490,094.90
  5. Step 5: Solve for x
    x = 6,208,490,094.90/87,328.56
  6. Step 6: Final answer
    x = 71,093.47

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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.