Home / 89,620.56-123,689.93-53,830.31

Finding the Fourth Proportional to 89,620.56, 123,689.93 and 53,830.31

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Solution

The fourth proportional to 89,620.56, 123,689.93 and 53,830.31 is: 74,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,620.56 : 123,689.93 = 53,830.31 : x
  2. Step 2: Convert to fraction form
    89,620.56/123,689.93 = 53,830.31/x
  3. Step 3: Cross multiply
    89,620.56x = 123,689.93 × 53,830.31
  4. Step 4: Simplify right side
    89,620.56x = 6,658,266,388.18
  5. Step 5: Solve for x
    x = 6,658,266,388.18/89,620.56
  6. Step 6: Final answer
    x = 74,293.96

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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.