Home / 78,525.81-108,365.94-42,716.03

Finding the Fourth Proportional to 78,525.81, 108,365.94 and 42,716.03

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Solution

The fourth proportional to 78,525.81, 108,365.94 and 42,716.03 is: 58,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,525.81 : 108,365.94 = 42,716.03 : x
  2. Step 2: Convert to fraction form
    78,525.81/108,365.94 = 42,716.03/x
  3. Step 3: Cross multiply
    78,525.81x = 108,365.94 × 42,716.03
  4. Step 4: Simplify right side
    78,525.81x = 4,628,962,202.19
  5. Step 5: Solve for x
    x = 4,628,962,202.19/78,525.81
  6. Step 6: Final answer
    x = 58,948.29

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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.