Home / 57,420.12-86,131.80-15,867.12

Finding the Fourth Proportional to 57,420.12, 86,131.80 and 15,867.12

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Solution

The fourth proportional to 57,420.12, 86,131.80 and 15,867.12 is: 23,801.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,420.12 : 86,131.80 = 15,867.12 : x
  2. Step 2: Convert to fraction form
    57,420.12/86,131.80 = 15,867.12/x
  3. Step 3: Cross multiply
    57,420.12x = 86,131.80 × 15,867.12
  4. Step 4: Simplify right side
    57,420.12x = 1,366,663,606.42
  5. Step 5: Solve for x
    x = 1,366,663,606.42/57,420.12
  6. Step 6: Final answer
    x = 23,801.13

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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.