Home / 48,311.02-72,458.16-12,772.72

Finding the Fourth Proportional to 48,311.02, 72,458.16 and 12,772.72

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Solution

The fourth proportional to 48,311.02, 72,458.16 and 12,772.72 is: 19,156.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,311.02 : 72,458.16 = 12,772.72 : x
  2. Step 2: Convert to fraction form
    48,311.02/72,458.16 = 12,772.72/x
  3. Step 3: Cross multiply
    48,311.02x = 72,458.16 × 12,772.72
  4. Step 4: Simplify right side
    48,311.02x = 925,487,789.40
  5. Step 5: Solve for x
    x = 925,487,789.40/48,311.02
  6. Step 6: Final answer
    x = 19,156.87

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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.