Home / 82,815.52-114,285.68-45,090

Finding the Fourth Proportional to 82,815.52, 114,285.68 and 45,090

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Solution

The fourth proportional to 82,815.52, 114,285.68 and 45,090 is: 62,224.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,815.52 : 114,285.68 = 45,090 : x
  2. Step 2: Convert to fraction form
    82,815.52/114,285.68 = 45,090/x
  3. Step 3: Cross multiply
    82,815.52x = 114,285.68 × 45,090
  4. Step 4: Simplify right side
    82,815.52x = 5,153,141,311.20
  5. Step 5: Solve for x
    x = 5,153,141,311.20/82,815.52
  6. Step 6: Final answer
    x = 62,224.34

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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.