Home / 51,464.40-77,200.20-20,295.60

Finding the Fourth Proportional to 51,464.40, 77,200.20 and 20,295.60

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Solution

The fourth proportional to 51,464.40, 77,200.20 and 20,295.60 is: 30,444.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,464.40 : 77,200.20 = 20,295.60 : x
  2. Step 2: Convert to fraction form
    51,464.40/77,200.20 = 20,295.60/x
  3. Step 3: Cross multiply
    51,464.40x = 77,200.20 × 20,295.60
  4. Step 4: Simplify right side
    51,464.40x = 1,566,824,379.12
  5. Step 5: Solve for x
    x = 1,566,824,379.12/51,464.40
  6. Step 6: Final answer
    x = 30,444.82

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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.