Home / 43,077.47-64,616.22-19,687.50

Finding the Fourth Proportional to 43,077.47, 64,616.22 and 19,687.50

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Solution

The fourth proportional to 43,077.47, 64,616.22 and 19,687.50 is: 29,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,077.47 : 64,616.22 = 19,687.50 : x
  2. Step 2: Convert to fraction form
    43,077.47/64,616.22 = 19,687.50/x
  3. Step 3: Cross multiply
    43,077.47x = 64,616.22 × 19,687.50
  4. Step 4: Simplify right side
    43,077.47x = 1,272,131,831.25
  5. Step 5: Solve for x
    x = 1,272,131,831.25/43,077.47
  6. Step 6: Final answer
    x = 29,531.26

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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.