Home / 81,157.77-111,995.62-45,348.07

Finding the Fourth Proportional to 81,157.77, 111,995.62 and 45,348.07

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Solution

The fourth proportional to 81,157.77, 111,995.62 and 45,348.07 is: 62,579.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,157.77 : 111,995.62 = 45,348.07 : x
  2. Step 2: Convert to fraction form
    81,157.77/111,995.62 = 45,348.07/x
  3. Step 3: Cross multiply
    81,157.77x = 111,995.62 × 45,348.07
  4. Step 4: Simplify right side
    81,157.77x = 5,078,785,215.45
  5. Step 5: Solve for x
    x = 5,078,785,215.45/81,157.77
  6. Step 6: Final answer
    x = 62,579.16

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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.