Home / 81,535.17-112,414.38-52,804.07

Finding the Fourth Proportional to 81,535.17, 112,414.38 and 52,804.07

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Solution

The fourth proportional to 81,535.17, 112,414.38 and 52,804.07 is: 72,802.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,535.17 : 112,414.38 = 52,804.07 : x
  2. Step 2: Convert to fraction form
    81,535.17/112,414.38 = 52,804.07/x
  3. Step 3: Cross multiply
    81,535.17x = 112,414.38 × 52,804.07
  4. Step 4: Simplify right side
    81,535.17x = 5,935,936,749.02
  5. Step 5: Solve for x
    x = 5,935,936,749.02/81,535.17
  6. Step 6: Final answer
    x = 72,802.16

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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.