Home / 83,426.40-115,122.05-47,611.57

Finding the Fourth Proportional to 83,426.40, 115,122.05 and 47,611.57

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Solution

The fourth proportional to 83,426.40, 115,122.05 and 47,611.57 is: 65,700.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,426.40 : 115,122.05 = 47,611.57 : x
  2. Step 2: Convert to fraction form
    83,426.40/115,122.05 = 47,611.57/x
  3. Step 3: Cross multiply
    83,426.40x = 115,122.05 × 47,611.57
  4. Step 4: Simplify right side
    83,426.40x = 5,481,141,542.12
  5. Step 5: Solve for x
    x = 5,481,141,542.12/83,426.40
  6. Step 6: Final answer
    x = 65,700.32

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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.