Home / 81,066.06-121,600.71-43,657.02

Finding the Fourth Proportional to 81,066.06, 121,600.71 and 43,657.02

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Solution

The fourth proportional to 81,066.06, 121,600.71 and 43,657.02 is: 65,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,066.06 : 121,600.71 = 43,657.02 : x
  2. Step 2: Convert to fraction form
    81,066.06/121,600.71 = 43,657.02/x
  3. Step 3: Cross multiply
    81,066.06x = 121,600.71 × 43,657.02
  4. Step 4: Simplify right side
    81,066.06x = 5,308,724,628.48
  5. Step 5: Solve for x
    x = 5,308,724,628.48/81,066.06
  6. Step 6: Final answer
    x = 65,486.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.