Home / 79,505.87-119,280.32-26,915.36

Finding the Fourth Proportional to 79,505.87, 119,280.32 and 26,915.36

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Solution

The fourth proportional to 79,505.87, 119,280.32 and 26,915.36 is: 40,380.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,505.87 : 119,280.32 = 26,915.36 : x
  2. Step 2: Convert to fraction form
    79,505.87/119,280.32 = 26,915.36/x
  3. Step 3: Cross multiply
    79,505.87x = 119,280.32 × 26,915.36
  4. Step 4: Simplify right side
    79,505.87x = 3,210,472,619.14
  5. Step 5: Solve for x
    x = 3,210,472,619.14/79,505.87
  6. Step 6: Final answer
    x = 40,380.32

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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.