Home / 60,345.12-90,496.08-20,891.64

Finding the Fourth Proportional to 60,345.12, 90,496.08 and 20,891.64

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Solution

The fourth proportional to 60,345.12, 90,496.08 and 20,891.64 is: 31,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,345.12 : 90,496.08 = 20,891.64 : x
  2. Step 2: Convert to fraction form
    60,345.12/90,496.08 = 20,891.64/x
  3. Step 3: Cross multiply
    60,345.12x = 90,496.08 × 20,891.64
  4. Step 4: Simplify right side
    60,345.12x = 1,890,611,524.77
  5. Step 5: Solve for x
    x = 1,890,611,524.77/60,345.12
  6. Step 6: Final answer
    x = 31,329.98

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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.