Home / 81,659.29-112,686.90-45,850.81

Finding the Fourth Proportional to 81,659.29, 112,686.90 and 45,850.81

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Solution

The fourth proportional to 81,659.29, 112,686.90 and 45,850.81 is: 63,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,659.29 : 112,686.90 = 45,850.81 : x
  2. Step 2: Convert to fraction form
    81,659.29/112,686.90 = 45,850.81/x
  3. Step 3: Cross multiply
    81,659.29x = 112,686.90 × 45,850.81
  4. Step 4: Simplify right side
    81,659.29x = 5,166,785,641.39
  5. Step 5: Solve for x
    x = 5,166,785,641.39/81,659.29
  6. Step 6: Final answer
    x = 63,272.48

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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.