Home / 81,928.71-113,048.13-47,461.17

Finding the Fourth Proportional to 81,928.71, 113,048.13 and 47,461.17

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Solution

The fourth proportional to 81,928.71, 113,048.13 and 47,461.17 is: 65,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,928.71 : 113,048.13 = 47,461.17 : x
  2. Step 2: Convert to fraction form
    81,928.71/113,048.13 = 47,461.17/x
  3. Step 3: Cross multiply
    81,928.71x = 113,048.13 × 47,461.17
  4. Step 4: Simplify right side
    81,928.71x = 5,365,396,516.11
  5. Step 5: Solve for x
    x = 5,365,396,516.11/81,928.71
  6. Step 6: Final answer
    x = 65,488.60

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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.