Home / 86,676.30-129,792.48-59,985.34

Finding the Fourth Proportional to 86,676.30, 129,792.48 and 59,985.34

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Solution

The fourth proportional to 86,676.30, 129,792.48 and 59,985.34 is: 89,824.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,676.30 : 129,792.48 = 59,985.34 : x
  2. Step 2: Convert to fraction form
    86,676.30/129,792.48 = 59,985.34/x
  3. Step 3: Cross multiply
    86,676.30x = 129,792.48 × 59,985.34
  4. Step 4: Simplify right side
    86,676.30x = 7,785,646,042.24
  5. Step 5: Solve for x
    x = 7,785,646,042.24/86,676.30
  6. Step 6: Final answer
    x = 89,824.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.