Home / 57,762.91-86,643.68-18,320.36

Finding the Fourth Proportional to 57,762.91, 86,643.68 and 18,320.36

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Solution

The fourth proportional to 57,762.91, 86,643.68 and 18,320.36 is: 27,480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,762.91 : 86,643.68 = 18,320.36 : x
  2. Step 2: Convert to fraction form
    57,762.91/86,643.68 = 18,320.36/x
  3. Step 3: Cross multiply
    57,762.91x = 86,643.68 × 18,320.36
  4. Step 4: Simplify right side
    57,762.91x = 1,587,343,534.33
  5. Step 5: Solve for x
    x = 1,587,343,534.33/57,762.91
  6. Step 6: Final answer
    x = 27,480.33

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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.