Home / 43,112.12-64,646.24-19,718.50

Finding the Fourth Proportional to 43,112.12, 64,646.24 and 19,718.50

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Solution

The fourth proportional to 43,112.12, 64,646.24 and 19,718.50 is: 29,567.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,112.12 : 64,646.24 = 19,718.50 : x
  2. Step 2: Convert to fraction form
    43,112.12/64,646.24 = 19,718.50/x
  3. Step 3: Cross multiply
    43,112.12x = 64,646.24 × 19,718.50
  4. Step 4: Simplify right side
    43,112.12x = 1,274,726,883.44
  5. Step 5: Solve for x
    x = 1,274,726,883.44/43,112.12
  6. Step 6: Final answer
    x = 29,567.72

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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.