Home / 57,723.12-79,633.80-38,866.32

Finding the Fourth Proportional to 57,723.12, 79,633.80 and 38,866.32

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Solution

The fourth proportional to 57,723.12, 79,633.80 and 38,866.32 is: 53,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,723.12 : 79,633.80 = 38,866.32 : x
  2. Step 2: Convert to fraction form
    57,723.12/79,633.80 = 38,866.32/x
  3. Step 3: Cross multiply
    57,723.12x = 79,633.80 × 38,866.32
  4. Step 4: Simplify right side
    57,723.12x = 3,095,072,753.62
  5. Step 5: Solve for x
    x = 3,095,072,753.62/57,723.12
  6. Step 6: Final answer
    x = 53,619.29

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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.