Home / 43,125.65-64,688.46-19,405.47

Finding the Fourth Proportional to 43,125.65, 64,688.46 and 19,405.47

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Solution

The fourth proportional to 43,125.65, 64,688.46 and 19,405.47 is: 29,108.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,125.65 : 64,688.46 = 19,405.47 : x
  2. Step 2: Convert to fraction form
    43,125.65/64,688.46 = 19,405.47/x
  3. Step 3: Cross multiply
    43,125.65x = 64,688.46 × 19,405.47
  4. Step 4: Simplify right side
    43,125.65x = 1,255,309,969.88
  5. Step 5: Solve for x
    x = 1,255,309,969.88/43,125.65
  6. Step 6: Final answer
    x = 29,108.20

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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.