Home / 74,266.39-102,486.21-42,000.44

Finding the Fourth Proportional to 74,266.39, 102,486.21 and 42,000.44

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Solution

The fourth proportional to 74,266.39, 102,486.21 and 42,000.44 is: 57,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,266.39 : 102,486.21 = 42,000.44 : x
  2. Step 2: Convert to fraction form
    74,266.39/102,486.21 = 42,000.44/x
  3. Step 3: Cross multiply
    74,266.39x = 102,486.21 × 42,000.44
  4. Step 4: Simplify right side
    74,266.39x = 4,304,465,913.93
  5. Step 5: Solve for x
    x = 4,304,465,913.93/74,266.39
  6. Step 6: Final answer
    x = 57,959.81

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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.