Home / 45,901.74-68,851.77-12,621.67

Finding the Fourth Proportional to 45,901.74, 68,851.77 and 12,621.67

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Solution

The fourth proportional to 45,901.74, 68,851.77 and 12,621.67 is: 18,932.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,901.74 : 68,851.77 = 12,621.67 : x
  2. Step 2: Convert to fraction form
    45,901.74/68,851.77 = 12,621.67/x
  3. Step 3: Cross multiply
    45,901.74x = 68,851.77 × 12,621.67
  4. Step 4: Simplify right side
    45,901.74x = 869,024,319.86
  5. Step 5: Solve for x
    x = 869,024,319.86/45,901.74
  6. Step 6: Final answer
    x = 18,932.27

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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.