Home / 89,820.78-134,814.60-45,478.95

Finding the Fourth Proportional to 89,820.78, 134,814.60 and 45,478.95

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Solution

The fourth proportional to 89,820.78, 134,814.60 and 45,478.95 is: 68,260.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,820.78 : 134,814.60 = 45,478.95 : x
  2. Step 2: Convert to fraction form
    89,820.78/134,814.60 = 45,478.95/x
  3. Step 3: Cross multiply
    89,820.78x = 134,814.60 × 45,478.95
  4. Step 4: Simplify right side
    89,820.78x = 6,131,226,452.67
  5. Step 5: Solve for x
    x = 6,131,226,452.67/89,820.78
  6. Step 6: Final answer
    x = 68,260.67

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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.