Home / 67,901.07-93,711.78-39,220.70

Finding the Fourth Proportional to 67,901.07, 93,711.78 and 39,220.70

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Solution

The fourth proportional to 67,901.07, 93,711.78 and 39,220.70 is: 54,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,901.07 : 93,711.78 = 39,220.70 : x
  2. Step 2: Convert to fraction form
    67,901.07/93,711.78 = 39,220.70/x
  3. Step 3: Cross multiply
    67,901.07x = 93,711.78 × 39,220.70
  4. Step 4: Simplify right side
    67,901.07x = 3,675,441,413.74
  5. Step 5: Solve for x
    x = 3,675,441,413.74/67,901.07
  6. Step 6: Final answer
    x = 54,129.36

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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.