Home / 52,125.77-78,203.25-20,516.33

Finding the Fourth Proportional to 52,125.77, 78,203.25 and 20,516.33

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Solution

The fourth proportional to 52,125.77, 78,203.25 and 20,516.33 is: 30,780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,125.77 : 78,203.25 = 20,516.33 : x
  2. Step 2: Convert to fraction form
    52,125.77/78,203.25 = 20,516.33/x
  3. Step 3: Cross multiply
    52,125.77x = 78,203.25 × 20,516.33
  4. Step 4: Simplify right side
    52,125.77x = 1,604,443,879.58
  5. Step 5: Solve for x
    x = 1,604,443,879.58/52,125.77
  6. Step 6: Final answer
    x = 30,780.24

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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.