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Finding the Fourth Proportional to 74,330.56, 102,434.56 and 72,964.13

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Solution

The fourth proportional to 74,330.56, 102,434.56 and 72,964.13 is: 100,551.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,330.56 : 102,434.56 = 72,964.13 : x
  2. Step 2: Convert to fraction form
    74,330.56/102,434.56 = 72,964.13/x
  3. Step 3: Cross multiply
    74,330.56x = 102,434.56 × 72,964.13
  4. Step 4: Simplify right side
    74,330.56x = 7,474,047,857.75
  5. Step 5: Solve for x
    x = 7,474,047,857.75/74,330.56
  6. Step 6: Final answer
    x = 100,551.48

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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.