Home / 81,750.61-112,846.67-47,770.14

Finding the Fourth Proportional to 81,750.61, 112,846.67 and 47,770.14

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Solution

The fourth proportional to 81,750.61, 112,846.67 and 47,770.14 is: 65,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,750.61 : 112,846.67 = 47,770.14 : x
  2. Step 2: Convert to fraction form
    81,750.61/112,846.67 = 47,770.14/x
  3. Step 3: Cross multiply
    81,750.61x = 112,846.67 × 47,770.14
  4. Step 4: Simplify right side
    81,750.61x = 5,390,701,224.43
  5. Step 5: Solve for x
    x = 5,390,701,224.43/81,750.61
  6. Step 6: Final answer
    x = 65,940.81

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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.