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Finding the Fourth Proportional to 74,322.65, 102,564.73 and 40,330.27

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Solution

The fourth proportional to 74,322.65, 102,564.73 and 40,330.27 is: 55,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,322.65 : 102,564.73 = 40,330.27 : x
  2. Step 2: Convert to fraction form
    74,322.65/102,564.73 = 40,330.27/x
  3. Step 3: Cross multiply
    74,322.65x = 102,564.73 × 40,330.27
  4. Step 4: Simplify right side
    74,322.65x = 4,136,463,253.38
  5. Step 5: Solve for x
    x = 4,136,463,253.38/74,322.65
  6. Step 6: Final answer
    x = 55,655.49

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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.