Home / 74,428.84-102,711.81-42,597.75

Finding the Fourth Proportional to 74,428.84, 102,711.81 and 42,597.75

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Solution

The fourth proportional to 74,428.84, 102,711.81 and 42,597.75 is: 58,784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,428.84 : 102,711.81 = 42,597.75 : x
  2. Step 2: Convert to fraction form
    74,428.84/102,711.81 = 42,597.75/x
  3. Step 3: Cross multiply
    74,428.84x = 102,711.81 × 42,597.75
  4. Step 4: Simplify right side
    74,428.84x = 4,375,292,004.43
  5. Step 5: Solve for x
    x = 4,375,292,004.43/74,428.84
  6. Step 6: Final answer
    x = 58,784.90

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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.