Home / 87,166.90-120,316.08-51,368.44

Finding the Fourth Proportional to 87,166.90, 120,316.08 and 51,368.44

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Solution

The fourth proportional to 87,166.90, 120,316.08 and 51,368.44 is: 70,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,166.90 : 120,316.08 = 51,368.44 : x
  2. Step 2: Convert to fraction form
    87,166.90/120,316.08 = 51,368.44/x
  3. Step 3: Cross multiply
    87,166.90x = 120,316.08 × 51,368.44
  4. Step 4: Simplify right side
    87,166.90x = 6,180,449,336.52
  5. Step 5: Solve for x
    x = 6,180,449,336.52/87,166.90
  6. Step 6: Final answer
    x = 70,903.63

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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.