Home / 92,929.90-128,243.40-50,488.42

Finding the Fourth Proportional to 92,929.90, 128,243.40 and 50,488.42

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Solution

The fourth proportional to 92,929.90, 128,243.40 and 50,488.42 is: 69,674.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,929.90 : 128,243.40 = 50,488.42 : x
  2. Step 2: Convert to fraction form
    92,929.90/128,243.40 = 50,488.42/x
  3. Step 3: Cross multiply
    92,929.90x = 128,243.40 × 50,488.42
  4. Step 4: Simplify right side
    92,929.90x = 6,474,806,641.43
  5. Step 5: Solve for x
    x = 6,474,806,641.43/92,929.90
  6. Step 6: Final answer
    x = 69,674.09

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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.