Home / 57,109.46-78,808.58-31,614.32

Finding the Fourth Proportional to 57,109.46, 78,808.58 and 31,614.32

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Solution

The fourth proportional to 57,109.46, 78,808.58 and 31,614.32 is: 43,626.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,109.46 : 78,808.58 = 31,614.32 : x
  2. Step 2: Convert to fraction form
    57,109.46/78,808.58 = 31,614.32/x
  3. Step 3: Cross multiply
    57,109.46x = 78,808.58 × 31,614.32
  4. Step 4: Simplify right side
    57,109.46x = 2,491,479,666.87
  5. Step 5: Solve for x
    x = 2,491,479,666.87/57,109.46
  6. Step 6: Final answer
    x = 43,626.39

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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.