Home / 91,639.10-137,415.51-35,505.50

Finding the Fourth Proportional to 91,639.10, 137,415.51 and 35,505.50

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Solution

The fourth proportional to 91,639.10, 137,415.51 and 35,505.50 is: 53,241.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,639.10 : 137,415.51 = 35,505.50 : x
  2. Step 2: Convert to fraction form
    91,639.10/137,415.51 = 35,505.50/x
  3. Step 3: Cross multiply
    91,639.10x = 137,415.51 × 35,505.50
  4. Step 4: Simplify right side
    91,639.10x = 4,879,006,390.31
  5. Step 5: Solve for x
    x = 4,879,006,390.31/91,639.10
  6. Step 6: Final answer
    x = 53,241.54

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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.