Home / 91,415.28-137,067.60-59,787.24

Finding the Fourth Proportional to 91,415.28, 137,067.60 and 59,787.24

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Solution

The fourth proportional to 91,415.28, 137,067.60 and 59,787.24 is: 89,644.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,415.28 : 137,067.60 = 59,787.24 : x
  2. Step 2: Convert to fraction form
    91,415.28/137,067.60 = 59,787.24/x
  3. Step 3: Cross multiply
    91,415.28x = 137,067.60 × 59,787.24
  4. Step 4: Simplify right side
    91,415.28x = 8,194,893,497.42
  5. Step 5: Solve for x
    x = 8,194,893,497.42/91,415.28
  6. Step 6: Final answer
    x = 89,644.68

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1.5x scale

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.