Home / 83,415.24-115,113.08-45,690.12

Finding the Fourth Proportional to 83,415.24, 115,113.08 and 45,690.12

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Solution

The fourth proportional to 83,415.24, 115,113.08 and 45,690.12 is: 63,052.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,415.24 : 115,113.08 = 45,690.12 : x
  2. Step 2: Convert to fraction form
    83,415.24/115,113.08 = 45,690.12/x
  3. Step 3: Cross multiply
    83,415.24x = 115,113.08 × 45,690.12
  4. Step 4: Simplify right side
    83,415.24x = 5,259,530,438.77
  5. Step 5: Solve for x
    x = 5,259,530,438.77/83,415.24
  6. Step 6: Final answer
    x = 63,052.39

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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.