Home / 89,804.24-134,618.32-76,507.28

Finding the Fourth Proportional to 89,804.24, 134,618.32 and 76,507.28

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Solution

The fourth proportional to 89,804.24, 134,618.32 and 76,507.28 is: 114,685.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,804.24 : 134,618.32 = 76,507.28 : x
  2. Step 2: Convert to fraction form
    89,804.24/134,618.32 = 76,507.28/x
  3. Step 3: Cross multiply
    89,804.24x = 134,618.32 × 76,507.28
  4. Step 4: Simplify right side
    89,804.24x = 10,299,281,501.37
  5. Step 5: Solve for x
    x = 10,299,281,501.37/89,804.24
  6. Step 6: Final answer
    x = 114,685.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.