Home / 85,075.62-117,330.44-54,851.28

Finding the Fourth Proportional to 85,075.62, 117,330.44 and 54,851.28

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Solution

The fourth proportional to 85,075.62, 117,330.44 and 54,851.28 is: 75,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,075.62 : 117,330.44 = 54,851.28 : x
  2. Step 2: Convert to fraction form
    85,075.62/117,330.44 = 54,851.28/x
  3. Step 3: Cross multiply
    85,075.62x = 117,330.44 × 54,851.28
  4. Step 4: Simplify right side
    85,075.62x = 6,435,724,542.71
  5. Step 5: Solve for x
    x = 6,435,724,542.71/85,075.62
  6. Step 6: Final answer
    x = 75,647.11

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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.