Home / 66,378.65-99,539.63-30,818.03

Finding the Fourth Proportional to 66,378.65, 99,539.63 and 30,818.03

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Solution

The fourth proportional to 66,378.65, 99,539.63 and 30,818.03 is: 46,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,378.65 : 99,539.63 = 30,818.03 : x
  2. Step 2: Convert to fraction form
    66,378.65/99,539.63 = 30,818.03/x
  3. Step 3: Cross multiply
    66,378.65x = 99,539.63 × 30,818.03
  4. Step 4: Simplify right side
    66,378.65x = 3,067,615,149.44
  5. Step 5: Solve for x
    x = 3,067,615,149.44/66,378.65
  6. Step 6: Final answer
    x = 46,213.88

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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.