Home / 82,828.64-114,278.64-74,845.28

Finding the Fourth Proportional to 82,828.64, 114,278.64 and 74,845.28

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Solution

The fourth proportional to 82,828.64, 114,278.64 and 74,845.28 is: 103,264.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,828.64 : 114,278.64 = 74,845.28 : x
  2. Step 2: Convert to fraction form
    82,828.64/114,278.64 = 74,845.28/x
  3. Step 3: Cross multiply
    82,828.64x = 114,278.64 × 74,845.28
  4. Step 4: Simplify right side
    82,828.64x = 8,553,216,808.82
  5. Step 5: Solve for x
    x = 8,553,216,808.82/82,828.64
  6. Step 6: Final answer
    x = 103,264.00

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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.