Home / 40,807.26-61,161.63-21,075.06

Finding the Fourth Proportional to 40,807.26, 61,161.63 and 21,075.06

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Solution

The fourth proportional to 40,807.26, 61,161.63 and 21,075.06 is: 31,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,807.26 : 61,161.63 = 21,075.06 : x
  2. Step 2: Convert to fraction form
    40,807.26/61,161.63 = 21,075.06/x
  3. Step 3: Cross multiply
    40,807.26x = 61,161.63 × 21,075.06
  4. Step 4: Simplify right side
    40,807.26x = 1,288,985,021.95
  5. Step 5: Solve for x
    x = 1,288,985,021.95/40,807.26
  6. Step 6: Final answer
    x = 31,587.15

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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.