Home / 61,913.62-85,479.87-45,979.30

Finding the Fourth Proportional to 61,913.62, 85,479.87 and 45,979.30

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Solution

The fourth proportional to 61,913.62, 85,479.87 and 45,979.30 is: 63,480.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,913.62 : 85,479.87 = 45,979.30 : x
  2. Step 2: Convert to fraction form
    61,913.62/85,479.87 = 45,979.30/x
  3. Step 3: Cross multiply
    61,913.62x = 85,479.87 × 45,979.30
  4. Step 4: Simplify right side
    61,913.62x = 3,930,304,586.69
  5. Step 5: Solve for x
    x = 3,930,304,586.69/61,913.62
  6. Step 6: Final answer
    x = 63,480.45

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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.