Home / 89,285.31-123,213.35-48,999.76

Finding the Fourth Proportional to 89,285.31, 123,213.35 and 48,999.76

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Solution

The fourth proportional to 89,285.31, 123,213.35 and 48,999.76 is: 67,619.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,285.31 : 123,213.35 = 48,999.76 : x
  2. Step 2: Convert to fraction form
    89,285.31/123,213.35 = 48,999.76/x
  3. Step 3: Cross multiply
    89,285.31x = 123,213.35 × 48,999.76
  4. Step 4: Simplify right side
    89,285.31x = 6,037,424,578.80
  5. Step 5: Solve for x
    x = 6,037,424,578.80/89,285.31
  6. Step 6: Final answer
    x = 67,619.46

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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.