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Finding the Fourth Proportional to 37,079.78, 55,619.20 and 9,000.06

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Solution

The fourth proportional to 37,079.78, 55,619.20 and 9,000.06 is: 13,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,079.78 : 55,619.20 = 9,000.06 : x
  2. Step 2: Convert to fraction form
    37,079.78/55,619.20 = 9,000.06/x
  3. Step 3: Cross multiply
    37,079.78x = 55,619.20 × 9,000.06
  4. Step 4: Simplify right side
    37,079.78x = 500,576,137.15
  5. Step 5: Solve for x
    x = 500,576,137.15/37,079.78
  6. Step 6: Final answer
    x = 13,499.98

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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.