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Finding the Fourth Proportional to 76,113.35, 105,036.27 and 42,579.35

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Solution

The fourth proportional to 76,113.35, 105,036.27 and 42,579.35 is: 58,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,113.35 : 105,036.27 = 42,579.35 : x
  2. Step 2: Convert to fraction form
    76,113.35/105,036.27 = 42,579.35/x
  3. Step 3: Cross multiply
    76,113.35x = 105,036.27 × 42,579.35
  4. Step 4: Simplify right side
    76,113.35x = 4,472,376,103.02
  5. Step 5: Solve for x
    x = 4,472,376,103.02/76,113.35
  6. Step 6: Final answer
    x = 58,759.42

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