Home / 81,883.92-113,013.45-47,423.68

Finding the Fourth Proportional to 81,883.92, 113,013.45 and 47,423.68

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Solution

The fourth proportional to 81,883.92, 113,013.45 and 47,423.68 is: 65,452.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,883.92 : 113,013.45 = 47,423.68 : x
  2. Step 2: Convert to fraction form
    81,883.92/113,013.45 = 47,423.68/x
  3. Step 3: Cross multiply
    81,883.92x = 113,013.45 × 47,423.68
  4. Step 4: Simplify right side
    81,883.92x = 5,359,513,688.50
  5. Step 5: Solve for x
    x = 5,359,513,688.50/81,883.92
  6. Step 6: Final answer
    x = 65,452.58

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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.