Home / 87,069.84-120,397.56-69,133.20

Finding the Fourth Proportional to 87,069.84, 120,397.56 and 69,133.20

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Solution

The fourth proportional to 87,069.84, 120,397.56 and 69,133.20 is: 95,595.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,069.84 : 120,397.56 = 69,133.20 : x
  2. Step 2: Convert to fraction form
    87,069.84/120,397.56 = 69,133.20/x
  3. Step 3: Cross multiply
    87,069.84x = 120,397.56 × 69,133.20
  4. Step 4: Simplify right side
    87,069.84x = 8,323,468,594.99
  5. Step 5: Solve for x
    x = 8,323,468,594.99/87,069.84
  6. Step 6: Final answer
    x = 95,595.31

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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.