Home / 86,562.72-129,850.02-51,075.90

Finding the Fourth Proportional to 86,562.72, 129,850.02 and 51,075.90

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Solution

The fourth proportional to 86,562.72, 129,850.02 and 51,075.90 is: 76,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,562.72 : 129,850.02 = 51,075.90 : x
  2. Step 2: Convert to fraction form
    86,562.72/129,850.02 = 51,075.90/x
  3. Step 3: Cross multiply
    86,562.72x = 129,850.02 × 51,075.90
  4. Step 4: Simplify right side
    86,562.72x = 6,632,206,636.52
  5. Step 5: Solve for x
    x = 6,632,206,636.52/86,562.72
  6. Step 6: Final answer
    x = 76,617.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.