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Finding the Fourth Proportional to 61,902, 85,435.56 and 36,750.96

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Solution

The fourth proportional to 61,902, 85,435.56 and 36,750.96 is: 50,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,902 : 85,435.56 = 36,750.96 : x
  2. Step 2: Convert to fraction form
    61,902/85,435.56 = 36,750.96/x
  3. Step 3: Cross multiply
    61,902x = 85,435.56 × 36,750.96
  4. Step 4: Simplify right side
    61,902x = 3,139,838,848.14
  5. Step 5: Solve for x
    x = 3,139,838,848.14/61,902
  6. Step 6: Final answer
    x = 50,722.74

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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.