Home / 58,221.33-87,328.94-18,778.45

Finding the Fourth Proportional to 58,221.33, 87,328.94 and 18,778.45

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Solution

The fourth proportional to 58,221.33, 87,328.94 and 18,778.45 is: 28,166.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221.33 : 87,328.94 = 18,778.45 : x
  2. Step 2: Convert to fraction form
    58,221.33/87,328.94 = 18,778.45/x
  3. Step 3: Cross multiply
    58,221.33x = 87,328.94 × 18,778.45
  4. Step 4: Simplify right side
    58,221.33x = 1,639,901,984.87
  5. Step 5: Solve for x
    x = 1,639,901,984.87/58,221.33
  6. Step 6: Final answer
    x = 28,166.69

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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.