Home / 286,760.92-430,142.06-87,082.81

Finding the Fourth Proportional to 286,760.92, 430,142.06 and 87,082.81

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Solution

The fourth proportional to 286,760.92, 430,142.06 and 87,082.81 is: 130,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,760.92 : 430,142.06 = 87,082.81 : x
  2. Step 2: Convert to fraction form
    286,760.92/430,142.06 = 87,082.81/x
  3. Step 3: Cross multiply
    286,760.92x = 430,142.06 × 87,082.81
  4. Step 4: Simplify right side
    286,760.92x = 37,457,979,283.99
  5. Step 5: Solve for x
    x = 37,457,979,283.99/286,760.92
  6. Step 6: Final answer
    x = 130,624.42

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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.