Home / 86,676.61-129,792.93-59,985.64

Finding the Fourth Proportional to 86,676.61, 129,792.93 and 59,985.64

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Solution

The fourth proportional to 86,676.61, 129,792.93 and 59,985.64 is: 89,824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,676.61 : 129,792.93 = 59,985.64 : x
  2. Step 2: Convert to fraction form
    86,676.61/129,792.93 = 59,985.64/x
  3. Step 3: Cross multiply
    86,676.61x = 129,792.93 × 59,985.64
  4. Step 4: Simplify right side
    86,676.61x = 7,785,711,883.20
  5. Step 5: Solve for x
    x = 7,785,711,883.20/86,676.61
  6. Step 6: Final answer
    x = 89,824.84

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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.