Home / 84,938.72-127,429.68-49,907.84

Finding the Fourth Proportional to 84,938.72, 127,429.68 and 49,907.84

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Solution

The fourth proportional to 84,938.72, 127,429.68 and 49,907.84 is: 74,874.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,938.72 : 127,429.68 = 49,907.84 : x
  2. Step 2: Convert to fraction form
    84,938.72/127,429.68 = 49,907.84/x
  3. Step 3: Cross multiply
    84,938.72x = 127,429.68 × 49,907.84
  4. Step 4: Simplify right side
    84,938.72x = 6,359,740,080.69
  5. Step 5: Solve for x
    x = 6,359,740,080.69/84,938.72
  6. Step 6: Final answer
    x = 74,874.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.