Home / 57,105.67-85,666.65-17,665.78

Finding the Fourth Proportional to 57,105.67, 85,666.65 and 17,665.78

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Solution

The fourth proportional to 57,105.67, 85,666.65 and 17,665.78 is: 26,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,105.67 : 85,666.65 = 17,665.78 : x
  2. Step 2: Convert to fraction form
    57,105.67/85,666.65 = 17,665.78/x
  3. Step 3: Cross multiply
    57,105.67x = 85,666.65 × 17,665.78
  4. Step 4: Simplify right side
    57,105.67x = 1,513,368,192.24
  5. Step 5: Solve for x
    x = 1,513,368,192.24/57,105.67
  6. Step 6: Final answer
    x = 26,501.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.