Home / 66,277.20-99,448.20-31,210.80

Finding the Fourth Proportional to 66,277.20, 99,448.20 and 31,210.80

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Solution

The fourth proportional to 66,277.20, 99,448.20 and 31,210.80 is: 46,831.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,277.20 : 99,448.20 = 31,210.80 : x
  2. Step 2: Convert to fraction form
    66,277.20/99,448.20 = 31,210.80/x
  3. Step 3: Cross multiply
    66,277.20x = 99,448.20 × 31,210.80
  4. Step 4: Simplify right side
    66,277.20x = 3,103,857,880.56
  5. Step 5: Solve for x
    x = 3,103,857,880.56/66,277.20
  6. Step 6: Final answer
    x = 46,831.46

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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.