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Finding the Fourth Proportional to 62,988, 86,923.47 and 34,693.71

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Solution

The fourth proportional to 62,988, 86,923.47 and 34,693.71 is: 47,877.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,988 : 86,923.47 = 34,693.71 : x
  2. Step 2: Convert to fraction form
    62,988/86,923.47 = 34,693.71/x
  3. Step 3: Cross multiply
    62,988x = 86,923.47 × 34,693.71
  4. Step 4: Simplify right side
    62,988x = 3,015,697,660.37
  5. Step 5: Solve for x
    x = 3,015,697,660.37/62,988
  6. Step 6: Final answer
    x = 47,877.34

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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.