Home / 80,878.50-111,612.78-46,907.13

Finding the Fourth Proportional to 80,878.50, 111,612.78 and 46,907.13

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Solution

The fourth proportional to 80,878.50, 111,612.78 and 46,907.13 is: 64,732.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,878.50 : 111,612.78 = 46,907.13 : x
  2. Step 2: Convert to fraction form
    80,878.50/111,612.78 = 46,907.13/x
  3. Step 3: Cross multiply
    80,878.50x = 111,612.78 × 46,907.13
  4. Step 4: Simplify right side
    80,878.50x = 5,235,434,505.79
  5. Step 5: Solve for x
    x = 5,235,434,505.79/80,878.50
  6. Step 6: Final answer
    x = 64,732.09

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1.5x scale

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.