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Finding the Fourth Proportional to 70,503.58, 97,288.79 and 40,282.88

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Solution

The fourth proportional to 70,503.58, 97,288.79 and 40,282.88 is: 55,586.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,503.58 : 97,288.79 = 40,282.88 : x
  2. Step 2: Convert to fraction form
    70,503.58/97,288.79 = 40,282.88/x
  3. Step 3: Cross multiply
    70,503.58x = 97,288.79 × 40,282.88
  4. Step 4: Simplify right side
    70,503.58x = 3,919,072,694.72
  5. Step 5: Solve for x
    x = 3,919,072,694.72/70,503.58
  6. Step 6: Final answer
    x = 55,586.86

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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.