Home / 86,264.48-129,408.78-30,096.38

Finding the Fourth Proportional to 86,264.48, 129,408.78 and 30,096.38

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Solution

The fourth proportional to 86,264.48, 129,408.78 and 30,096.38 is: 45,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,264.48 : 129,408.78 = 30,096.38 : x
  2. Step 2: Convert to fraction form
    86,264.48/129,408.78 = 30,096.38/x
  3. Step 3: Cross multiply
    86,264.48x = 129,408.78 × 30,096.38
  4. Step 4: Simplify right side
    86,264.48x = 3,894,735,818.22
  5. Step 5: Solve for x
    x = 3,894,735,818.22/86,264.48
  6. Step 6: Final answer
    x = 45,148.78

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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.