Home / 83,427.45-115,129.94-45,187.08

Finding the Fourth Proportional to 83,427.45, 115,129.94 and 45,187.08

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Solution

The fourth proportional to 83,427.45, 115,129.94 and 45,187.08 is: 62,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,427.45 : 115,129.94 = 45,187.08 : x
  2. Step 2: Convert to fraction form
    83,427.45/115,129.94 = 45,187.08/x
  3. Step 3: Cross multiply
    83,427.45x = 115,129.94 × 45,187.08
  4. Step 4: Simplify right side
    83,427.45x = 5,202,385,583.24
  5. Step 5: Solve for x
    x = 5,202,385,583.24/83,427.45
  6. Step 6: Final answer
    x = 62,358.20

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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.