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Finding the Fourth Proportional to 70,552.60, 97,362.30 and 38,721.43

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Solution

The fourth proportional to 70,552.60, 97,362.30 and 38,721.43 is: 53,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,552.60 : 97,362.30 = 38,721.43 : x
  2. Step 2: Convert to fraction form
    70,552.60/97,362.30 = 38,721.43/x
  3. Step 3: Cross multiply
    70,552.60x = 97,362.30 × 38,721.43
  4. Step 4: Simplify right side
    70,552.60x = 3,770,007,484.09
  5. Step 5: Solve for x
    x = 3,770,007,484.09/70,552.60
  6. Step 6: Final answer
    x = 53,435.42

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1.5x scale

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.