Home / 82,128.48-113,386.14-53,883.48

Finding the Fourth Proportional to 82,128.48, 113,386.14 and 53,883.48

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Solution

The fourth proportional to 82,128.48, 113,386.14 and 53,883.48 is: 74,391.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,128.48 : 113,386.14 = 53,883.48 : x
  2. Step 2: Convert to fraction form
    82,128.48/113,386.14 = 53,883.48/x
  3. Step 3: Cross multiply
    82,128.48x = 113,386.14 × 53,883.48
  4. Step 4: Simplify right side
    82,128.48x = 6,109,639,806.97
  5. Step 5: Solve for x
    x = 6,109,639,806.97/82,128.48
  6. Step 6: Final answer
    x = 74,391.24

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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.