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Finding the Fourth Proportional to 73,700.76, 110,549.70 and 21,102.60

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Solution

The fourth proportional to 73,700.76, 110,549.70 and 21,102.60 is: 31,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,700.76 : 110,549.70 = 21,102.60 : x
  2. Step 2: Convert to fraction form
    73,700.76/110,549.70 = 21,102.60/x
  3. Step 3: Cross multiply
    73,700.76x = 110,549.70 × 21,102.60
  4. Step 4: Simplify right side
    73,700.76x = 2,332,886,099.22
  5. Step 5: Solve for x
    x = 2,332,886,099.22/73,700.76
  6. Step 6: Final answer
    x = 31,653.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.