Home / 83,705.12-115,513.91-45,465.03

Finding the Fourth Proportional to 83,705.12, 115,513.91 and 45,465.03

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Solution

The fourth proportional to 83,705.12, 115,513.91 and 45,465.03 is: 62,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,705.12 : 115,513.91 = 45,465.03 : x
  2. Step 2: Convert to fraction form
    83,705.12/115,513.91 = 45,465.03/x
  3. Step 3: Cross multiply
    83,705.12x = 115,513.91 × 45,465.03
  4. Step 4: Simplify right side
    83,705.12x = 5,251,843,383.57
  5. Step 5: Solve for x
    x = 5,251,843,383.57/83,705.12
  6. Step 6: Final answer
    x = 62,742.20

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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.