Home / 89,008.40-122,830.35-48,721.16

Finding the Fourth Proportional to 89,008.40, 122,830.35 and 48,721.16

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Solution

The fourth proportional to 89,008.40, 122,830.35 and 48,721.16 is: 67,234.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,008.40 : 122,830.35 = 48,721.16 : x
  2. Step 2: Convert to fraction form
    89,008.40/122,830.35 = 48,721.16/x
  3. Step 3: Cross multiply
    89,008.40x = 122,830.35 × 48,721.16
  4. Step 4: Simplify right side
    89,008.40x = 5,984,437,135.21
  5. Step 5: Solve for x
    x = 5,984,437,135.21/89,008.40
  6. Step 6: Final answer
    x = 67,234.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.