Home / 66,295.20-99,475.20-31,228.80

Finding the Fourth Proportional to 66,295.20, 99,475.20 and 31,228.80

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Solution

The fourth proportional to 66,295.20, 99,475.20 and 31,228.80 is: 46,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,295.20 : 99,475.20 = 31,228.80 : x
  2. Step 2: Convert to fraction form
    66,295.20/99,475.20 = 31,228.80/x
  3. Step 3: Cross multiply
    66,295.20x = 99,475.20 × 31,228.80
  4. Step 4: Simplify right side
    66,295.20x = 3,106,491,125.76
  5. Step 5: Solve for x
    x = 3,106,491,125.76/66,295.20
  6. Step 6: Final answer
    x = 46,858.46

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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.