Home / 82,131.16-113,358.58-51,897.28

Finding the Fourth Proportional to 82,131.16, 113,358.58 and 51,897.28

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Solution

The fourth proportional to 82,131.16, 113,358.58 and 51,897.28 is: 71,629.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,131.16 : 113,358.58 = 51,897.28 : x
  2. Step 2: Convert to fraction form
    82,131.16/113,358.58 = 51,897.28/x
  3. Step 3: Cross multiply
    82,131.16x = 113,358.58 × 51,897.28
  4. Step 4: Simplify right side
    82,131.16x = 5,883,001,966.66
  5. Step 5: Solve for x
    x = 5,883,001,966.66/82,131.16
  6. Step 6: Final answer
    x = 71,629.35

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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.