Home / 86,629.76-129,891.84-34,064

Finding the Fourth Proportional to 86,629.76, 129,891.84 and 34,064

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Solution

The fourth proportional to 86,629.76, 129,891.84 and 34,064 is: 51,075.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,629.76 : 129,891.84 = 34,064 : x
  2. Step 2: Convert to fraction form
    86,629.76/129,891.84 = 34,064/x
  3. Step 3: Cross multiply
    86,629.76x = 129,891.84 × 34,064
  4. Step 4: Simplify right side
    86,629.76x = 4,424,635,637.76
  5. Step 5: Solve for x
    x = 4,424,635,637.76/86,629.76
  6. Step 6: Final answer
    x = 51,075.24

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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.