Home / 83,505.16-115,236.30-45,779.32

Finding the Fourth Proportional to 83,505.16, 115,236.30 and 45,779.32

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Solution

The fourth proportional to 83,505.16, 115,236.30 and 45,779.32 is: 63,175.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,505.16 : 115,236.30 = 45,779.32 : x
  2. Step 2: Convert to fraction form
    83,505.16/115,236.30 = 45,779.32/x
  3. Step 3: Cross multiply
    83,505.16x = 115,236.30 × 45,779.32
  4. Step 4: Simplify right side
    83,505.16x = 5,275,439,453.32
  5. Step 5: Solve for x
    x = 5,275,439,453.32/83,505.16
  6. Step 6: Final answer
    x = 63,175.01

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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.