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Finding the Fourth Proportional to 100,015.80, 150,038.61 and 36,831.06

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Solution

The fourth proportional to 100,015.80, 150,038.61 and 36,831.06 is: 55,252.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,015.80 : 150,038.61 = 36,831.06 : x
  2. Step 2: Convert to fraction form
    100,015.80/150,038.61 = 36,831.06/x
  3. Step 3: Cross multiply
    100,015.80x = 150,038.61 × 36,831.06
  4. Step 4: Simplify right side
    100,015.80x = 5,526,081,116.28
  5. Step 5: Solve for x
    x = 5,526,081,116.28/100,015.80
  6. Step 6: Final answer
    x = 55,252.08

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1.5x scale

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.