Home / 48,048.21-72,072.57-31,512.95

Finding the Fourth Proportional to 48,048.21, 72,072.57 and 31,512.95

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Solution

The fourth proportional to 48,048.21, 72,072.57 and 31,512.95 is: 47,269.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,048.21 : 72,072.57 = 31,512.95 : x
  2. Step 2: Convert to fraction form
    48,048.21/72,072.57 = 31,512.95/x
  3. Step 3: Cross multiply
    48,048.21x = 72,072.57 × 31,512.95
  4. Step 4: Simplify right side
    48,048.21x = 2,271,219,176.61
  5. Step 5: Solve for x
    x = 2,271,219,176.61/48,048.21
  6. Step 6: Final answer
    x = 47,269.59

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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.