Home / 85,880.32-128,821.20-23,551.36

Finding the Fourth Proportional to 85,880.32, 128,821.20 and 23,551.36

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Solution

The fourth proportional to 85,880.32, 128,821.20 and 23,551.36 is: 35,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,880.32 : 128,821.20 = 23,551.36 : x
  2. Step 2: Convert to fraction form
    85,880.32/128,821.20 = 23,551.36/x
  3. Step 3: Cross multiply
    85,880.32x = 128,821.20 × 23,551.36
  4. Step 4: Simplify right side
    85,880.32x = 3,033,914,456.83
  5. Step 5: Solve for x
    x = 3,033,914,456.83/85,880.32
  6. Step 6: Final answer
    x = 35,327.24

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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.