Home / 34,515.60-51,643.80-31,405.20

Finding the Fourth Proportional to 34,515.60, 51,643.80 and 31,405.20

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Solution

The fourth proportional to 34,515.60, 51,643.80 and 31,405.20 is: 46,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,515.60 : 51,643.80 = 31,405.20 : x
  2. Step 2: Convert to fraction form
    34,515.60/51,643.80 = 31,405.20/x
  3. Step 3: Cross multiply
    34,515.60x = 51,643.80 × 31,405.20
  4. Step 4: Simplify right side
    34,515.60x = 1,621,883,867.76
  5. Step 5: Solve for x
    x = 1,621,883,867.76/34,515.60
  6. Step 6: Final answer
    x = 46,989.88

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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.