Home / 57,421.16-86,131.74-17,981.36

Finding the Fourth Proportional to 57,421.16, 86,131.74 and 17,981.36

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Solution

The fourth proportional to 57,421.16, 86,131.74 and 17,981.36 is: 26,972.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,421.16 : 86,131.74 = 17,981.36 : x
  2. Step 2: Convert to fraction form
    57,421.16/86,131.74 = 17,981.36/x
  3. Step 3: Cross multiply
    57,421.16x = 86,131.74 × 17,981.36
  4. Step 4: Simplify right side
    57,421.16x = 1,548,765,824.37
  5. Step 5: Solve for x
    x = 1,548,765,824.37/57,421.16
  6. Step 6: Final answer
    x = 26,972.04

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1.5x scale

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.