Home / 57,762.16-86,642.55-18,319.61

Finding the Fourth Proportional to 57,762.16, 86,642.55 and 18,319.61

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Solution

The fourth proportional to 57,762.16, 86,642.55 and 18,319.61 is: 27,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,762.16 : 86,642.55 = 18,319.61 : x
  2. Step 2: Convert to fraction form
    57,762.16/86,642.55 = 18,319.61/x
  3. Step 3: Cross multiply
    57,762.16x = 86,642.55 × 18,319.61
  4. Step 4: Simplify right side
    57,762.16x = 1,587,257,942.01
  5. Step 5: Solve for x
    x = 1,587,257,942.01/57,762.16
  6. Step 6: Final answer
    x = 27,479.20

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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.