Home / 57,438.16-86,150.36-15,321.40

Finding the Fourth Proportional to 57,438.16, 86,150.36 and 15,321.40

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Solution

The fourth proportional to 57,438.16, 86,150.36 and 15,321.40 is: 22,980.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,438.16 : 86,150.36 = 15,321.40 : x
  2. Step 2: Convert to fraction form
    57,438.16/86,150.36 = 15,321.40/x
  3. Step 3: Cross multiply
    57,438.16x = 86,150.36 × 15,321.40
  4. Step 4: Simplify right side
    57,438.16x = 1,319,944,125.70
  5. Step 5: Solve for x
    x = 1,319,944,125.70/57,438.16
  6. Step 6: Final answer
    x = 22,980.26

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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.