Home / 57,051.12-78,720.98-33,178.80

Finding the Fourth Proportional to 57,051.12, 78,720.98 and 33,178.80

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Solution

The fourth proportional to 57,051.12, 78,720.98 and 33,178.80 is: 45,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,051.12 : 78,720.98 = 33,178.80 : x
  2. Step 2: Convert to fraction form
    57,051.12/78,720.98 = 33,178.80/x
  3. Step 3: Cross multiply
    57,051.12x = 78,720.98 × 33,178.80
  4. Step 4: Simplify right side
    57,051.12x = 2,611,867,651.22
  5. Step 5: Solve for x
    x = 2,611,867,651.22/57,051.12
  6. Step 6: Final answer
    x = 45,781.18

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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.