Home / 83,740.40-125,596.20-31,122.80

Finding the Fourth Proportional to 83,740.40, 125,596.20 and 31,122.80

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Solution

The fourth proportional to 83,740.40, 125,596.20 and 31,122.80 is: 46,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,740.40 : 125,596.20 = 31,122.80 : x
  2. Step 2: Convert to fraction form
    83,740.40/125,596.20 = 31,122.80/x
  3. Step 3: Cross multiply
    83,740.40x = 125,596.20 × 31,122.80
  4. Step 4: Simplify right side
    83,740.40x = 3,908,905,413.36
  5. Step 5: Solve for x
    x = 3,908,905,413.36/83,740.40
  6. Step 6: Final answer
    x = 46,678.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.