Home / 83,770.89-125,623.53-31,151.67

Finding the Fourth Proportional to 83,770.89, 125,623.53 and 31,151.67

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Solution

The fourth proportional to 83,770.89, 125,623.53 and 31,151.67 is: 46,715.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,770.89 : 125,623.53 = 31,151.67 : x
  2. Step 2: Convert to fraction form
    83,770.89/125,623.53 = 31,151.67/x
  3. Step 3: Cross multiply
    83,770.89x = 125,623.53 × 31,151.67
  4. Step 4: Simplify right side
    83,770.89x = 3,913,382,750.80
  5. Step 5: Solve for x
    x = 3,913,382,750.80/83,770.89
  6. Step 6: Final answer
    x = 46,715.31

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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.