Home / 57,408.53-79,250.67-38,320.55

Finding the Fourth Proportional to 57,408.53, 79,250.67 and 38,320.55

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Solution

The fourth proportional to 57,408.53, 79,250.67 and 38,320.55 is: 52,900.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,408.53 : 79,250.67 = 38,320.55 : x
  2. Step 2: Convert to fraction form
    57,408.53/79,250.67 = 38,320.55/x
  3. Step 3: Cross multiply
    57,408.53x = 79,250.67 × 38,320.55
  4. Step 4: Simplify right side
    57,408.53x = 3,036,928,866.02
  5. Step 5: Solve for x
    x = 3,036,928,866.02/57,408.53
  6. Step 6: Final answer
    x = 52,900.31

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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.