Home / 45,603.18-68,300.90-31,499.09

Finding the Fourth Proportional to 45,603.18, 68,300.90 and 31,499.09

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Solution

The fourth proportional to 45,603.18, 68,300.90 and 31,499.09 is: 47,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,603.18 : 68,300.90 = 31,499.09 : x
  2. Step 2: Convert to fraction form
    45,603.18/68,300.90 = 31,499.09/x
  3. Step 3: Cross multiply
    45,603.18x = 68,300.90 × 31,499.09
  4. Step 4: Simplify right side
    45,603.18x = 2,151,415,697.18
  5. Step 5: Solve for x
    x = 2,151,415,697.18/45,603.18
  6. Step 6: Final answer
    x = 47,176.88

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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.