Home / 75,666.42-104,415.63-43,399.35

Finding the Fourth Proportional to 75,666.42, 104,415.63 and 43,399.35

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Solution

The fourth proportional to 75,666.42, 104,415.63 and 43,399.35 is: 59,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,666.42 : 104,415.63 = 43,399.35 : x
  2. Step 2: Convert to fraction form
    75,666.42/104,415.63 = 43,399.35/x
  3. Step 3: Cross multiply
    75,666.42x = 104,415.63 × 43,399.35
  4. Step 4: Simplify right side
    75,666.42x = 4,531,570,471.84
  5. Step 5: Solve for x
    x = 4,531,570,471.84/75,666.42
  6. Step 6: Final answer
    x = 59,888.79

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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.