Home / 48,831.80-73,161.30-45,721.40

Finding the Fourth Proportional to 48,831.80, 73,161.30 and 45,721.40

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Solution

The fourth proportional to 48,831.80, 73,161.30 and 45,721.40 is: 68,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,831.80 : 73,161.30 = 45,721.40 : x
  2. Step 2: Convert to fraction form
    48,831.80/73,161.30 = 45,721.40/x
  3. Step 3: Cross multiply
    48,831.80x = 73,161.30 × 45,721.40
  4. Step 4: Simplify right side
    48,831.80x = 3,345,037,061.82
  5. Step 5: Solve for x
    x = 3,345,037,061.82/48,831.80
  6. Step 6: Final answer
    x = 68,501.20

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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.