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Finding the Fourth Proportional to 73,075.85, 100,765.64 and 63,433.10

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Solution

The fourth proportional to 73,075.85, 100,765.64 and 63,433.10 is: 87,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,075.85 : 100,765.64 = 63,433.10 : x
  2. Step 2: Convert to fraction form
    73,075.85/100,765.64 = 63,433.10/x
  3. Step 3: Cross multiply
    73,075.85x = 100,765.64 × 63,433.10
  4. Step 4: Simplify right side
    73,075.85x = 6,391,877,329.18
  5. Step 5: Solve for x
    x = 6,391,877,329.18/73,075.85
  6. Step 6: Final answer
    x = 87,469.08

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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.