Home / 67,677.16-93,404.46-38,991.28

Finding the Fourth Proportional to 67,677.16, 93,404.46 and 38,991.28

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Solution

The fourth proportional to 67,677.16, 93,404.46 and 38,991.28 is: 53,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,677.16 : 93,404.46 = 38,991.28 : x
  2. Step 2: Convert to fraction form
    67,677.16/93,404.46 = 38,991.28/x
  3. Step 3: Cross multiply
    67,677.16x = 93,404.46 × 38,991.28
  4. Step 4: Simplify right side
    67,677.16x = 3,641,959,453.11
  5. Step 5: Solve for x
    x = 3,641,959,453.11/67,677.16
  6. Step 6: Final answer
    x = 53,813.72

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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.