Home / 81,946.92-113,012.10-53,642.28

Finding the Fourth Proportional to 81,946.92, 113,012.10 and 53,642.28

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Solution

The fourth proportional to 81,946.92, 113,012.10 and 53,642.28 is: 73,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,946.92 : 113,012.10 = 53,642.28 : x
  2. Step 2: Convert to fraction form
    81,946.92/113,012.10 = 53,642.28/x
  3. Step 3: Cross multiply
    81,946.92x = 113,012.10 × 53,642.28
  4. Step 4: Simplify right side
    81,946.92x = 6,062,226,711.59
  5. Step 5: Solve for x
    x = 6,062,226,711.59/81,946.92
  6. Step 6: Final answer
    x = 73,977.48

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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.