Home / 59,871.08-89,815.86-20,418.98

Finding the Fourth Proportional to 59,871.08, 89,815.86 and 20,418.98

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Solution

The fourth proportional to 59,871.08, 89,815.86 and 20,418.98 is: 30,631.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,871.08 : 89,815.86 = 20,418.98 : x
  2. Step 2: Convert to fraction form
    59,871.08/89,815.86 = 20,418.98/x
  3. Step 3: Cross multiply
    59,871.08x = 89,815.86 × 20,418.98
  4. Step 4: Simplify right side
    59,871.08x = 1,833,948,249.02
  5. Step 5: Solve for x
    x = 1,833,948,249.02/59,871.08
  6. Step 6: Final answer
    x = 30,631.62

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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.