Home / 57,709.61-86,569.38-20,266.47

Finding the Fourth Proportional to 57,709.61, 86,569.38 and 20,266.47

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Solution

The fourth proportional to 57,709.61, 86,569.38 and 20,266.47 is: 30,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.61 : 86,569.38 = 20,266.47 : x
  2. Step 2: Convert to fraction form
    57,709.61/86,569.38 = 20,266.47/x
  3. Step 3: Cross multiply
    57,709.61x = 86,569.38 × 20,266.47
  4. Step 4: Simplify right side
    57,709.61x = 1,754,455,742.69
  5. Step 5: Solve for x
    x = 1,754,455,742.69/57,709.61
  6. Step 6: Final answer
    x = 30,401.45

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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.