Home / 45,480.69-62,789.40-30,398.90

Finding the Fourth Proportional to 45,480.69, 62,789.40 and 30,398.90

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Solution

The fourth proportional to 45,480.69, 62,789.40 and 30,398.90 is: 41,967.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,480.69 : 62,789.40 = 30,398.90 : x
  2. Step 2: Convert to fraction form
    45,480.69/62,789.40 = 30,398.90/x
  3. Step 3: Cross multiply
    45,480.69x = 62,789.40 × 30,398.90
  4. Step 4: Simplify right side
    45,480.69x = 1,908,728,377.71
  5. Step 5: Solve for x
    x = 1,908,728,377.71/45,480.69
  6. Step 6: Final answer
    x = 41,967.89

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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.