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Finding the Fourth Proportional to 70,772.54, 97,670.81 and 38,941.43

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Solution

The fourth proportional to 70,772.54, 97,670.81 and 38,941.43 is: 53,741.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,772.54 : 97,670.81 = 38,941.43 : x
  2. Step 2: Convert to fraction form
    70,772.54/97,670.81 = 38,941.43/x
  3. Step 3: Cross multiply
    70,772.54x = 97,670.81 × 38,941.43
  4. Step 4: Simplify right side
    70,772.54x = 3,803,440,619.66
  5. Step 5: Solve for x
    x = 3,803,440,619.66/70,772.54
  6. Step 6: Final answer
    x = 53,741.76

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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.