Home / 67,677.27-93,409.65-39,399.36

Finding the Fourth Proportional to 67,677.27, 93,409.65 and 39,399.36

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Solution

The fourth proportional to 67,677.27, 93,409.65 and 39,399.36 is: 54,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,677.27 : 93,409.65 = 39,399.36 : x
  2. Step 2: Convert to fraction form
    67,677.27/93,409.65 = 39,399.36/x
  3. Step 3: Cross multiply
    67,677.27x = 93,409.65 × 39,399.36
  4. Step 4: Simplify right side
    67,677.27x = 3,680,280,427.82
  5. Step 5: Solve for x
    x = 3,680,280,427.82/67,677.27
  6. Step 6: Final answer
    x = 54,379.86

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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.