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Finding the Fourth Proportional to 70,375.76, 97,116.69 and 40,160.54

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Solution

The fourth proportional to 70,375.76, 97,116.69 and 40,160.54 is: 55,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,375.76 : 97,116.69 = 40,160.54 : x
  2. Step 2: Convert to fraction form
    70,375.76/97,116.69 = 40,160.54/x
  3. Step 3: Cross multiply
    70,375.76x = 97,116.69 × 40,160.54
  4. Step 4: Simplify right side
    70,375.76x = 3,900,258,713.41
  5. Step 5: Solve for x
    x = 3,900,258,713.41/70,375.76
  6. Step 6: Final answer
    x = 55,420.48

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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.