Home / 89,259.90-133,796.43-30,075.12

Finding the Fourth Proportional to 89,259.90, 133,796.43 and 30,075.12

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Solution

The fourth proportional to 89,259.90, 133,796.43 and 30,075.12 is: 45,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,259.90 : 133,796.43 = 30,075.12 : x
  2. Step 2: Convert to fraction form
    89,259.90/133,796.43 = 30,075.12/x
  3. Step 3: Cross multiply
    89,259.90x = 133,796.43 × 30,075.12
  4. Step 4: Simplify right side
    89,259.90x = 4,023,943,687.82
  5. Step 5: Solve for x
    x = 4,023,943,687.82/89,259.90
  6. Step 6: Final answer
    x = 45,081.20

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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.