Home / 83,681.82-125,490-30,361.14

Finding the Fourth Proportional to 83,681.82, 125,490 and 30,361.14

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Solution

The fourth proportional to 83,681.82, 125,490 and 30,361.14 is: 45,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,681.82 : 125,490 = 30,361.14 : x
  2. Step 2: Convert to fraction form
    83,681.82/125,490 = 30,361.14/x
  3. Step 3: Cross multiply
    83,681.82x = 125,490 × 30,361.14
  4. Step 4: Simplify right side
    83,681.82x = 3,810,019,458.60
  5. Step 5: Solve for x
    x = 3,810,019,458.60/83,681.82
  6. Step 6: Final answer
    x = 45,529.84

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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.