Home / 57,460.49-86,190.74-18,020.78

Finding the Fourth Proportional to 57,460.49, 86,190.74 and 18,020.78

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Solution

The fourth proportional to 57,460.49, 86,190.74 and 18,020.78 is: 27,031.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,460.49 : 86,190.74 = 18,020.78 : x
  2. Step 2: Convert to fraction form
    57,460.49/86,190.74 = 18,020.78/x
  3. Step 3: Cross multiply
    57,460.49x = 86,190.74 × 18,020.78
  4. Step 4: Simplify right side
    57,460.49x = 1,553,223,842.52
  5. Step 5: Solve for x
    x = 1,553,223,842.52/57,460.49
  6. Step 6: Final answer
    x = 27,031.16

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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.