Home / 99,744.32-137,643.36-55,032.32

Finding the Fourth Proportional to 99,744.32, 137,643.36 and 55,032.32

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Solution

The fourth proportional to 99,744.32, 137,643.36 and 55,032.32 is: 75,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,744.32 : 137,643.36 = 55,032.32 : x
  2. Step 2: Convert to fraction form
    99,744.32/137,643.36 = 55,032.32/x
  3. Step 3: Cross multiply
    99,744.32x = 137,643.36 × 55,032.32
  4. Step 4: Simplify right side
    99,744.32x = 7,574,833,433.40
  5. Step 5: Solve for x
    x = 7,574,833,433.40/99,744.32
  6. Step 6: Final answer
    x = 75,942.50

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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.