Home / 89,585.16-123,586.16-57,764.28

Finding the Fourth Proportional to 89,585.16, 123,586.16 and 57,764.28

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Solution

The fourth proportional to 89,585.16, 123,586.16 and 57,764.28 is: 79,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,585.16 : 123,586.16 = 57,764.28 : x
  2. Step 2: Convert to fraction form
    89,585.16/123,586.16 = 57,764.28/x
  3. Step 3: Cross multiply
    89,585.16x = 123,586.16 × 57,764.28
  4. Step 4: Simplify right side
    89,585.16x = 7,138,865,550.36
  5. Step 5: Solve for x
    x = 7,138,865,550.36/89,585.16
  6. Step 6: Final answer
    x = 79,688.04

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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.