Home / 81,800.16-112,877.76-45,983.36

Finding the Fourth Proportional to 81,800.16, 112,877.76 and 45,983.36

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Solution

The fourth proportional to 81,800.16, 112,877.76 and 45,983.36 is: 63,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,800.16 : 112,877.76 = 45,983.36 : x
  2. Step 2: Convert to fraction form
    81,800.16/112,877.76 = 45,983.36/x
  3. Step 3: Cross multiply
    81,800.16x = 112,877.76 × 45,983.36
  4. Step 4: Simplify right side
    81,800.16x = 5,190,498,674.07
  5. Step 5: Solve for x
    x = 5,190,498,674.07/81,800.16
  6. Step 6: Final answer
    x = 63,453.40

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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.