Home / 89,285.15-123,209.64-48,999.59

Finding the Fourth Proportional to 89,285.15, 123,209.64 and 48,999.59

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Solution

The fourth proportional to 89,285.15, 123,209.64 and 48,999.59 is: 67,617.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,285.15 : 123,209.64 = 48,999.59 : x
  2. Step 2: Convert to fraction form
    89,285.15/123,209.64 = 48,999.59/x
  3. Step 3: Cross multiply
    89,285.15x = 123,209.64 × 48,999.59
  4. Step 4: Simplify right side
    89,285.15x = 6,037,222,152.07
  5. Step 5: Solve for x
    x = 6,037,222,152.07/89,285.15
  6. Step 6: Final answer
    x = 67,617.31

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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.