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Finding the Fourth Proportional to 61,383, 84,341.37 and 48,785.88

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Solution

The fourth proportional to 61,383, 84,341.37 and 48,785.88 is: 67,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,383 : 84,341.37 = 48,785.88 : x
  2. Step 2: Convert to fraction form
    61,383/84,341.37 = 48,785.88/x
  3. Step 3: Cross multiply
    61,383x = 84,341.37 × 48,785.88
  4. Step 4: Simplify right side
    61,383x = 4,114,667,955.86
  5. Step 5: Solve for x
    x = 4,114,667,955.86/61,383
  6. Step 6: Final answer
    x = 67,032.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.