Home / 83,931.63-125,885.01-30,611.10

Finding the Fourth Proportional to 83,931.63, 125,885.01 and 30,611.10

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Solution

The fourth proportional to 83,931.63, 125,885.01 and 30,611.10 is: 45,912.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,931.63 : 125,885.01 = 30,611.10 : x
  2. Step 2: Convert to fraction form
    83,931.63/125,885.01 = 30,611.10/x
  3. Step 3: Cross multiply
    83,931.63x = 125,885.01 × 30,611.10
  4. Step 4: Simplify right side
    83,931.63x = 3,853,478,629.61
  5. Step 5: Solve for x
    x = 3,853,478,629.61/83,931.63
  6. Step 6: Final answer
    x = 45,912.11

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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.