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Finding the Fourth Proportional to 93,357.25, 128,813.65 and 54,587.61

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Solution

The fourth proportional to 93,357.25, 128,813.65 and 54,587.61 is: 75,319.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,357.25 : 128,813.65 = 54,587.61 : x
  2. Step 2: Convert to fraction form
    93,357.25/128,813.65 = 54,587.61/x
  3. Step 3: Cross multiply
    93,357.25x = 128,813.65 × 54,587.61
  4. Step 4: Simplify right side
    93,357.25x = 7,031,629,288.88
  5. Step 5: Solve for x
    x = 7,031,629,288.88/93,357.25
  6. Step 6: Final answer
    x = 75,319.58

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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.