Home / 69,143.83-95,415.27-38,515.30

Finding the Fourth Proportional to 69,143.83, 95,415.27 and 38,515.30

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Solution

The fourth proportional to 69,143.83, 95,415.27 and 38,515.30 is: 53,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,143.83 : 95,415.27 = 38,515.30 : x
  2. Step 2: Convert to fraction form
    69,143.83/95,415.27 = 38,515.30/x
  3. Step 3: Cross multiply
    69,143.83x = 95,415.27 × 38,515.30
  4. Step 4: Simplify right side
    69,143.83x = 3,674,947,365.66
  5. Step 5: Solve for x
    x = 3,674,947,365.66/69,143.83
  6. Step 6: Final answer
    x = 53,149.32

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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.