Home / 83,420.82-115,123.68-45,695.07

Finding the Fourth Proportional to 83,420.82, 115,123.68 and 45,695.07

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Solution

The fourth proportional to 83,420.82, 115,123.68 and 45,695.07 is: 63,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,420.82 : 115,123.68 = 45,695.07 : x
  2. Step 2: Convert to fraction form
    83,420.82/115,123.68 = 45,695.07/x
  3. Step 3: Cross multiply
    83,420.82x = 115,123.68 × 45,695.07
  4. Step 4: Simplify right side
    83,420.82x = 5,260,584,616.26
  5. Step 5: Solve for x
    x = 5,260,584,616.26/83,420.82
  6. Step 6: Final answer
    x = 63,060.81

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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.