Home / 57,135.36-78,847.68-34,475.52

Finding the Fourth Proportional to 57,135.36, 78,847.68 and 34,475.52

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Solution

The fourth proportional to 57,135.36, 78,847.68 and 34,475.52 is: 47,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,135.36 : 78,847.68 = 34,475.52 : x
  2. Step 2: Convert to fraction form
    57,135.36/78,847.68 = 34,475.52/x
  3. Step 3: Cross multiply
    57,135.36x = 78,847.68 × 34,475.52
  4. Step 4: Simplify right side
    57,135.36x = 2,718,314,768.79
  5. Step 5: Solve for x
    x = 2,718,314,768.79/57,135.36
  6. Step 6: Final answer
    x = 47,576.75

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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.