Home / 74,322.40-102,564.39-40,330.02

Finding the Fourth Proportional to 74,322.40, 102,564.39 and 40,330.02

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Solution

The fourth proportional to 74,322.40, 102,564.39 and 40,330.02 is: 55,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,322.40 : 102,564.39 = 40,330.02 : x
  2. Step 2: Convert to fraction form
    74,322.40/102,564.39 = 40,330.02/x
  3. Step 3: Cross multiply
    74,322.40x = 102,564.39 × 40,330.02
  4. Step 4: Simplify right side
    74,322.40x = 4,136,423,899.99
  5. Step 5: Solve for x
    x = 4,136,423,899.99/74,322.40
  6. Step 6: Final answer
    x = 55,655.15

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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.