Home / 89,187.98-123,076.08-48,900.80

Finding the Fourth Proportional to 89,187.98, 123,076.08 and 48,900.80

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Solution

The fourth proportional to 89,187.98, 123,076.08 and 48,900.80 is: 67,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,187.98 : 123,076.08 = 48,900.80 : x
  2. Step 2: Convert to fraction form
    89,187.98/123,076.08 = 48,900.80/x
  3. Step 3: Cross multiply
    89,187.98x = 123,076.08 × 48,900.80
  4. Step 4: Simplify right side
    89,187.98x = 6,018,518,772.86
  5. Step 5: Solve for x
    x = 6,018,518,772.86/89,187.98
  6. Step 6: Final answer
    x = 67,481.28

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1.5x scale

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.