Home / 44,075.90-66,114.38-12,911.78

Finding the Fourth Proportional to 44,075.90, 66,114.38 and 12,911.78

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Solution

The fourth proportional to 44,075.90, 66,114.38 and 12,911.78 is: 19,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,075.90 : 66,114.38 = 12,911.78 : x
  2. Step 2: Convert to fraction form
    44,075.90/66,114.38 = 12,911.78/x
  3. Step 3: Cross multiply
    44,075.90x = 66,114.38 × 12,911.78
  4. Step 4: Simplify right side
    44,075.90x = 853,654,031.10
  5. Step 5: Solve for x
    x = 853,654,031.10/44,075.90
  6. Step 6: Final answer
    x = 19,367.82

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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.