Home / 99,560.64-137,391.12-54,237.36

Finding the Fourth Proportional to 99,560.64, 137,391.12 and 54,237.36

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Solution

The fourth proportional to 99,560.64, 137,391.12 and 54,237.36 is: 74,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,560.64 : 137,391.12 = 54,237.36 : x
  2. Step 2: Convert to fraction form
    99,560.64/137,391.12 = 54,237.36/x
  3. Step 3: Cross multiply
    99,560.64x = 137,391.12 × 54,237.36
  4. Step 4: Simplify right side
    99,560.64x = 7,451,731,636.24
  5. Step 5: Solve for x
    x = 7,451,731,636.24/99,560.64
  6. Step 6: Final answer
    x = 74,846.16

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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.