Home / 67,701.78-93,428.82-39,409.26

Finding the Fourth Proportional to 67,701.78, 93,428.82 and 39,409.26

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Solution

The fourth proportional to 67,701.78, 93,428.82 and 39,409.26 is: 54,384.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,701.78 : 93,428.82 = 39,409.26 : x
  2. Step 2: Convert to fraction form
    67,701.78/93,428.82 = 39,409.26/x
  3. Step 3: Cross multiply
    67,701.78x = 93,428.82 × 39,409.26
  4. Step 4: Simplify right side
    67,701.78x = 3,681,960,658.87
  5. Step 5: Solve for x
    x = 3,681,960,658.87/67,701.78
  6. Step 6: Final answer
    x = 54,384.99

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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.