Home / 64,138.72-88,536.18-57,412.48

Finding the Fourth Proportional to 64,138.72, 88,536.18 and 57,412.48

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Solution

The fourth proportional to 64,138.72, 88,536.18 and 57,412.48 is: 79,251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,138.72 : 88,536.18 = 57,412.48 : x
  2. Step 2: Convert to fraction form
    64,138.72/88,536.18 = 57,412.48/x
  3. Step 3: Cross multiply
    64,138.72x = 88,536.18 × 57,412.48
  4. Step 4: Simplify right side
    64,138.72x = 5,083,081,663.53
  5. Step 5: Solve for x
    x = 5,083,081,663.53/64,138.72
  6. Step 6: Final answer
    x = 79,251.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.