Home / 82,039.30-123,075.45-25,888.07

Finding the Fourth Proportional to 82,039.30, 123,075.45 and 25,888.07

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Solution

The fourth proportional to 82,039.30, 123,075.45 and 25,888.07 is: 38,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,039.30 : 123,075.45 = 25,888.07 : x
  2. Step 2: Convert to fraction form
    82,039.30/123,075.45 = 25,888.07/x
  3. Step 3: Cross multiply
    82,039.30x = 123,075.45 × 25,888.07
  4. Step 4: Simplify right side
    82,039.30x = 3,186,186,172.57
  5. Step 5: Solve for x
    x = 3,186,186,172.57/82,039.30
  6. Step 6: Final answer
    x = 38,837.32

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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.