Home / 62,821.36-86,644.32-38,934.52

Finding the Fourth Proportional to 62,821.36, 86,644.32 and 38,934.52

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Solution

The fourth proportional to 62,821.36, 86,644.32 and 38,934.52 is: 53,699.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,821.36 : 86,644.32 = 38,934.52 : x
  2. Step 2: Convert to fraction form
    62,821.36/86,644.32 = 38,934.52/x
  3. Step 3: Cross multiply
    62,821.36x = 86,644.32 × 38,934.52
  4. Step 4: Simplify right side
    62,821.36x = 3,373,455,009.93
  5. Step 5: Solve for x
    x = 3,373,455,009.93/62,821.36
  6. Step 6: Final answer
    x = 53,699.17

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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.