Home / 83,511.48-115,245.60-45,785.76

Finding the Fourth Proportional to 83,511.48, 115,245.60 and 45,785.76

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Solution

The fourth proportional to 83,511.48, 115,245.60 and 45,785.76 is: 63,184.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,511.48 : 115,245.60 = 45,785.76 : x
  2. Step 2: Convert to fraction form
    83,511.48/115,245.60 = 45,785.76/x
  3. Step 3: Cross multiply
    83,511.48x = 115,245.60 × 45,785.76
  4. Step 4: Simplify right side
    83,511.48x = 5,276,607,382.66
  5. Step 5: Solve for x
    x = 5,276,607,382.66/83,511.48
  6. Step 6: Final answer
    x = 63,184.22

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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.