Home / 87,457.32-120,727.67-59,179.41

Finding the Fourth Proportional to 87,457.32, 120,727.67 and 59,179.41

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Solution

The fourth proportional to 87,457.32, 120,727.67 and 59,179.41 is: 81,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,457.32 : 120,727.67 = 59,179.41 : x
  2. Step 2: Convert to fraction form
    87,457.32/120,727.67 = 59,179.41/x
  3. Step 3: Cross multiply
    87,457.32x = 120,727.67 × 59,179.41
  4. Step 4: Simplify right side
    87,457.32x = 7,144,591,985.38
  5. Step 5: Solve for x
    x = 7,144,591,985.38/87,457.32
  6. Step 6: Final answer
    x = 81,692.33

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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.