Home / 86,937.40-130,367.70-40,204.60

Finding the Fourth Proportional to 86,937.40, 130,367.70 and 40,204.60

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Solution

The fourth proportional to 86,937.40, 130,367.70 and 40,204.60 is: 60,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,937.40 : 130,367.70 = 40,204.60 : x
  2. Step 2: Convert to fraction form
    86,937.40/130,367.70 = 40,204.60/x
  3. Step 3: Cross multiply
    86,937.40x = 130,367.70 × 40,204.60
  4. Step 4: Simplify right side
    86,937.40x = 5,241,381,231.42
  5. Step 5: Solve for x
    x = 5,241,381,231.42/86,937.40
  6. Step 6: Final answer
    x = 60,289.14

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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.