Home / 57,810.80-79,778.42-40,607.34

Finding the Fourth Proportional to 57,810.80, 79,778.42 and 40,607.34

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Solution

The fourth proportional to 57,810.80, 79,778.42 and 40,607.34 is: 56,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,810.80 : 79,778.42 = 40,607.34 : x
  2. Step 2: Convert to fraction form
    57,810.80/79,778.42 = 40,607.34/x
  3. Step 3: Cross multiply
    57,810.80x = 79,778.42 × 40,607.34
  4. Step 4: Simplify right side
    57,810.80x = 3,239,589,425.60
  5. Step 5: Solve for x
    x = 3,239,589,425.60/57,810.80
  6. Step 6: Final answer
    x = 56,037.79

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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.