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Finding the Fourth Proportional to 74,282.57, 102,510.11 and 42,451.39

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Solution

The fourth proportional to 74,282.57, 102,510.11 and 42,451.39 is: 58,583.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,282.57 : 102,510.11 = 42,451.39 : x
  2. Step 2: Convert to fraction form
    74,282.57/102,510.11 = 42,451.39/x
  3. Step 3: Cross multiply
    74,282.57x = 102,510.11 × 42,451.39
  4. Step 4: Simplify right side
    74,282.57x = 4,351,695,933.75
  5. Step 5: Solve for x
    x = 4,351,695,933.75/74,282.57
  6. Step 6: Final answer
    x = 58,583.01

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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.