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Finding the Fourth Proportional to 70,660.56, 97,506 and 40,446.48

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Solution

The fourth proportional to 70,660.56, 97,506 and 40,446.48 is: 55,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,660.56 : 97,506 = 40,446.48 : x
  2. Step 2: Convert to fraction form
    70,660.56/97,506 = 40,446.48/x
  3. Step 3: Cross multiply
    70,660.56x = 97,506 × 40,446.48
  4. Step 4: Simplify right side
    70,660.56x = 3,943,774,478.88
  5. Step 5: Solve for x
    x = 3,943,774,478.88/70,660.56
  6. Step 6: Final answer
    x = 55,812.95

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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.