Home / 78,033.37-107,685.70-42,224.01

Finding the Fourth Proportional to 78,033.37, 107,685.70 and 42,224.01

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Solution

The fourth proportional to 78,033.37, 107,685.70 and 42,224.01 is: 58,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,033.37 : 107,685.70 = 42,224.01 : x
  2. Step 2: Convert to fraction form
    78,033.37/107,685.70 = 42,224.01/x
  3. Step 3: Cross multiply
    78,033.37x = 107,685.70 × 42,224.01
  4. Step 4: Simplify right side
    78,033.37x = 4,546,922,073.66
  5. Step 5: Solve for x
    x = 4,546,922,073.66/78,033.37
  6. Step 6: Final answer
    x = 58,268.94

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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.