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Finding the Fourth Proportional to 70,732, 97,615.44 and 40,526.72

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Solution

The fourth proportional to 70,732, 97,615.44 and 40,526.72 is: 55,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,732 : 97,615.44 = 40,526.72 : x
  2. Step 2: Convert to fraction form
    70,732/97,615.44 = 40,526.72/x
  3. Step 3: Cross multiply
    70,732x = 97,615.44 × 40,526.72
  4. Step 4: Simplify right side
    70,732x = 3,956,033,604.56
  5. Step 5: Solve for x
    x = 3,956,033,604.56/70,732
  6. Step 6: Final answer
    x = 55,929.90

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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.