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Finding the Fourth Proportional to 70,032.08, 104,965.08 and 40,388.72

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Solution

The fourth proportional to 70,032.08, 104,965.08 and 40,388.72 is: 60,535.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,032.08 : 104,965.08 = 40,388.72 : x
  2. Step 2: Convert to fraction form
    70,032.08/104,965.08 = 40,388.72/x
  3. Step 3: Cross multiply
    70,032.08x = 104,965.08 × 40,388.72
  4. Step 4: Simplify right side
    70,032.08x = 4,239,404,701.07
  5. Step 5: Solve for x
    x = 4,239,404,701.07/70,032.08
  6. Step 6: Final answer
    x = 60,535.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.