Home / 51,831.92-71,530.35-29,172.38

Finding the Fourth Proportional to 51,831.92, 71,530.35 and 29,172.38

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Solution

The fourth proportional to 51,831.92, 71,530.35 and 29,172.38 is: 40,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,831.92 : 71,530.35 = 29,172.38 : x
  2. Step 2: Convert to fraction form
    51,831.92/71,530.35 = 29,172.38/x
  3. Step 3: Cross multiply
    51,831.92x = 71,530.35 × 29,172.38
  4. Step 4: Simplify right side
    51,831.92x = 2,086,710,462.32
  5. Step 5: Solve for x
    x = 2,086,710,462.32/51,831.92
  6. Step 6: Final answer
    x = 40,259.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.