Home / 82,130.56-113,340.19-45,336.80

Finding the Fourth Proportional to 82,130.56, 113,340.19 and 45,336.80

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Solution

The fourth proportional to 82,130.56, 113,340.19 and 45,336.80 is: 62,564.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,130.56 : 113,340.19 = 45,336.80 : x
  2. Step 2: Convert to fraction form
    82,130.56/113,340.19 = 45,336.80/x
  3. Step 3: Cross multiply
    82,130.56x = 113,340.19 × 45,336.80
  4. Step 4: Simplify right side
    82,130.56x = 5,138,480,845.95
  5. Step 5: Solve for x
    x = 5,138,480,845.95/82,130.56
  6. Step 6: Final answer
    x = 62,564.79

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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.