Home / 79,239.83-118,859.88-20,075.45

Finding the Fourth Proportional to 79,239.83, 118,859.88 and 20,075.45

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Solution

The fourth proportional to 79,239.83, 118,859.88 and 20,075.45 is: 30,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,239.83 : 118,859.88 = 20,075.45 : x
  2. Step 2: Convert to fraction form
    79,239.83/118,859.88 = 20,075.45/x
  3. Step 3: Cross multiply
    79,239.83x = 118,859.88 × 20,075.45
  4. Step 4: Simplify right side
    79,239.83x = 2,386,165,577.95
  5. Step 5: Solve for x
    x = 2,386,165,577.95/79,239.83
  6. Step 6: Final answer
    x = 30,113.21

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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.