Home / 89,444.02-123,405.76-53,620.96

Finding the Fourth Proportional to 89,444.02, 123,405.76 and 53,620.96

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Solution

The fourth proportional to 89,444.02, 123,405.76 and 53,620.96 is: 73,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,444.02 : 123,405.76 = 53,620.96 : x
  2. Step 2: Convert to fraction form
    89,444.02/123,405.76 = 53,620.96/x
  3. Step 3: Cross multiply
    89,444.02x = 123,405.76 × 53,620.96
  4. Step 4: Simplify right side
    89,444.02x = 6,617,135,320.73
  5. Step 5: Solve for x
    x = 6,617,135,320.73/89,444.02
  6. Step 6: Final answer
    x = 73,980.75

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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.