Home / 52,216.50-78,321.04-18,930.36

Finding the Fourth Proportional to 52,216.50, 78,321.04 and 18,930.36

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Solution

The fourth proportional to 52,216.50, 78,321.04 and 18,930.36 is: 28,394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,216.50 : 78,321.04 = 18,930.36 : x
  2. Step 2: Convert to fraction form
    52,216.50/78,321.04 = 18,930.36/x
  3. Step 3: Cross multiply
    52,216.50x = 78,321.04 × 18,930.36
  4. Step 4: Simplify right side
    52,216.50x = 1,482,645,482.77
  5. Step 5: Solve for x
    x = 1,482,645,482.77/52,216.50
  6. Step 6: Final answer
    x = 28,394.19

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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.