Home / 86,985.32-120,040.20-48,744.96

Finding the Fourth Proportional to 86,985.32, 120,040.20 and 48,744.96

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Solution

The fourth proportional to 86,985.32, 120,040.20 and 48,744.96 is: 67,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,985.32 : 120,040.20 = 48,744.96 : x
  2. Step 2: Convert to fraction form
    86,985.32/120,040.20 = 48,744.96/x
  3. Step 3: Cross multiply
    86,985.32x = 120,040.20 × 48,744.96
  4. Step 4: Simplify right side
    86,985.32x = 5,851,354,747.39
  5. Step 5: Solve for x
    x = 5,851,354,747.39/86,985.32
  6. Step 6: Final answer
    x = 67,268.30

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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.