Home / 57,069.39-78,758.08-31,575.34

Finding the Fourth Proportional to 57,069.39, 78,758.08 and 31,575.34

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Solution

The fourth proportional to 57,069.39, 78,758.08 and 31,575.34 is: 43,575.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,069.39 : 78,758.08 = 31,575.34 : x
  2. Step 2: Convert to fraction form
    57,069.39/78,758.08 = 31,575.34/x
  3. Step 3: Cross multiply
    57,069.39x = 78,758.08 × 31,575.34
  4. Step 4: Simplify right side
    57,069.39x = 2,486,813,516.87
  5. Step 5: Solve for x
    x = 2,486,813,516.87/57,069.39
  6. Step 6: Final answer
    x = 43,575.26

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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.