Home / 57,424.32-86,136.48-17,981.64

Finding the Fourth Proportional to 57,424.32, 86,136.48 and 17,981.64

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Solution

The fourth proportional to 57,424.32, 86,136.48 and 17,981.64 is: 26,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,424.32 : 86,136.48 = 17,981.64 : x
  2. Step 2: Convert to fraction form
    57,424.32/86,136.48 = 17,981.64/x
  3. Step 3: Cross multiply
    57,424.32x = 86,136.48 × 17,981.64
  4. Step 4: Simplify right side
    57,424.32x = 1,548,875,174.23
  5. Step 5: Solve for x
    x = 1,548,875,174.23/57,424.32
  6. Step 6: Final answer
    x = 26,972.46

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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.