Home / 57,107.29-78,808.68-31,614.08

Finding the Fourth Proportional to 57,107.29, 78,808.68 and 31,614.08

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Solution

The fourth proportional to 57,107.29, 78,808.68 and 31,614.08 is: 43,627.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,107.29 : 78,808.68 = 31,614.08 : x
  2. Step 2: Convert to fraction form
    57,107.29/78,808.68 = 31,614.08/x
  3. Step 3: Cross multiply
    57,107.29x = 78,808.68 × 31,614.08
  4. Step 4: Simplify right side
    57,107.29x = 2,491,463,460.89
  5. Step 5: Solve for x
    x = 2,491,463,460.89/57,107.29
  6. Step 6: Final answer
    x = 43,627.77

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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.