Home / 75,135.64-103,687.02-43,304.32

Finding the Fourth Proportional to 75,135.64, 103,687.02 and 43,304.32

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Solution

The fourth proportional to 75,135.64, 103,687.02 and 43,304.32 is: 59,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,135.64 : 103,687.02 = 43,304.32 : x
  2. Step 2: Convert to fraction form
    75,135.64/103,687.02 = 43,304.32/x
  3. Step 3: Cross multiply
    75,135.64x = 103,687.02 × 43,304.32
  4. Step 4: Simplify right side
    75,135.64x = 4,490,095,893.93
  5. Step 5: Solve for x
    x = 4,490,095,893.93/75,135.64
  6. Step 6: Final answer
    x = 59,759.87

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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.