Home / 84,032.78-115,955.46-51,310.74

Finding the Fourth Proportional to 84,032.78, 115,955.46 and 51,310.74

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Solution

The fourth proportional to 84,032.78, 115,955.46 and 51,310.74 is: 70,802.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,032.78 : 115,955.46 = 51,310.74 : x
  2. Step 2: Convert to fraction form
    84,032.78/115,955.46 = 51,310.74/x
  3. Step 3: Cross multiply
    84,032.78x = 115,955.46 × 51,310.74
  4. Step 4: Simplify right side
    84,032.78x = 5,949,760,459.64
  5. Step 5: Solve for x
    x = 5,949,760,459.64/84,032.78
  6. Step 6: Final answer
    x = 70,802.86

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1.5x scale

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.