Home / 48,501.09-72,778.91-18,920.97

Finding the Fourth Proportional to 48,501.09, 72,778.91 and 18,920.97

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Solution

The fourth proportional to 48,501.09, 72,778.91 and 18,920.97 is: 28,392.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,501.09 : 72,778.91 = 18,920.97 : x
  2. Step 2: Convert to fraction form
    48,501.09/72,778.91 = 18,920.97/x
  3. Step 3: Cross multiply
    48,501.09x = 72,778.91 × 18,920.97
  4. Step 4: Simplify right side
    48,501.09x = 1,377,047,478.14
  5. Step 5: Solve for x
    x = 1,377,047,478.14/48,501.09
  6. Step 6: Final answer
    x = 28,392.09

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1.5x scale

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.