Home / 87,094.16-120,192.36-61,646

Finding the Fourth Proportional to 87,094.16, 120,192.36 and 61,646

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Solution

The fourth proportional to 87,094.16, 120,192.36 and 61,646 is: 85,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,094.16 : 120,192.36 = 61,646 : x
  2. Step 2: Convert to fraction form
    87,094.16/120,192.36 = 61,646/x
  3. Step 3: Cross multiply
    87,094.16x = 120,192.36 × 61,646
  4. Step 4: Simplify right side
    87,094.16x = 7,409,378,224.56
  5. Step 5: Solve for x
    x = 7,409,378,224.56/87,094.16
  6. Step 6: Final answer
    x = 85,073.19

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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.