Home / 55,917.06-77,164.02-30,766.56

Finding the Fourth Proportional to 55,917.06, 77,164.02 and 30,766.56

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Solution

The fourth proportional to 55,917.06, 77,164.02 and 30,766.56 is: 42,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,917.06 : 77,164.02 = 30,766.56 : x
  2. Step 2: Convert to fraction form
    55,917.06/77,164.02 = 30,766.56/x
  3. Step 3: Cross multiply
    55,917.06x = 77,164.02 × 30,766.56
  4. Step 4: Simplify right side
    55,917.06x = 2,374,071,451.17
  5. Step 5: Solve for x
    x = 2,374,071,451.17/55,917.06
  6. Step 6: Final answer
    x = 42,457.01

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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.