Home / 57,075.50-78,761.66-31,583.28

Finding the Fourth Proportional to 57,075.50, 78,761.66 and 31,583.28

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Solution

The fourth proportional to 57,075.50, 78,761.66 and 31,583.28 is: 43,583.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,075.50 : 78,761.66 = 31,583.28 : x
  2. Step 2: Convert to fraction form
    57,075.50/78,761.66 = 31,583.28/x
  3. Step 3: Cross multiply
    57,075.50x = 78,761.66 × 31,583.28
  4. Step 4: Simplify right side
    57,075.50x = 2,487,551,561.04
  5. Step 5: Solve for x
    x = 2,487,551,561.04/57,075.50
  6. Step 6: Final answer
    x = 43,583.53

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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.