Home / 83,637.16-125,388.81-43,636.06

Finding the Fourth Proportional to 83,637.16, 125,388.81 and 43,636.06

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Solution

The fourth proportional to 83,637.16, 125,388.81 and 43,636.06 is: 65,419.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,637.16 : 125,388.81 = 43,636.06 : x
  2. Step 2: Convert to fraction form
    83,637.16/125,388.81 = 43,636.06/x
  3. Step 3: Cross multiply
    83,637.16x = 125,388.81 × 43,636.06
  4. Step 4: Simplify right side
    83,637.16x = 5,471,473,793.22
  5. Step 5: Solve for x
    x = 5,471,473,793.22/83,637.16
  6. Step 6: Final answer
    x = 65,419.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.