Home / 87,191.48-120,095.06-67,009.74

Finding the Fourth Proportional to 87,191.48, 120,095.06 and 67,009.74

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Solution

The fourth proportional to 87,191.48, 120,095.06 and 67,009.74 is: 92,297.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191.48 : 120,095.06 = 67,009.74 : x
  2. Step 2: Convert to fraction form
    87,191.48/120,095.06 = 67,009.74/x
  3. Step 3: Cross multiply
    87,191.48x = 120,095.06 × 67,009.74
  4. Step 4: Simplify right side
    87,191.48x = 8,047,538,745.88
  5. Step 5: Solve for x
    x = 8,047,538,745.88/87,191.48
  6. Step 6: Final answer
    x = 92,297.31

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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.