Home / 99,131.32-136,801.36-53,809.28

Finding the Fourth Proportional to 99,131.32, 136,801.36 and 53,809.28

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Solution

The fourth proportional to 99,131.32, 136,801.36 and 53,809.28 is: 74,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,131.32 : 136,801.36 = 53,809.28 : x
  2. Step 2: Convert to fraction form
    99,131.32/136,801.36 = 53,809.28/x
  3. Step 3: Cross multiply
    99,131.32x = 136,801.36 × 53,809.28
  4. Step 4: Simplify right side
    99,131.32x = 7,361,181,731.57
  5. Step 5: Solve for x
    x = 7,361,181,731.57/99,131.32
  6. Step 6: Final answer
    x = 74,256.87

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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.