Home / 57,749.72-86,633.40-15,631.16

Finding the Fourth Proportional to 57,749.72, 86,633.40 and 15,631.16

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Solution

The fourth proportional to 57,749.72, 86,633.40 and 15,631.16 is: 23,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,749.72 : 86,633.40 = 15,631.16 : x
  2. Step 2: Convert to fraction form
    57,749.72/86,633.40 = 15,631.16/x
  3. Step 3: Cross multiply
    57,749.72x = 86,633.40 × 15,631.16
  4. Step 4: Simplify right side
    57,749.72x = 1,354,180,536.74
  5. Step 5: Solve for x
    x = 1,354,180,536.74/57,749.72
  6. Step 6: Final answer
    x = 23,449.13

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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.