Home / 39,782.02-59,672.76-12,080.02

Finding the Fourth Proportional to 39,782.02, 59,672.76 and 12,080.02

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Solution

The fourth proportional to 39,782.02, 59,672.76 and 12,080.02 is: 18,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,782.02 : 59,672.76 = 12,080.02 : x
  2. Step 2: Convert to fraction form
    39,782.02/59,672.76 = 12,080.02/x
  3. Step 3: Cross multiply
    39,782.02x = 59,672.76 × 12,080.02
  4. Step 4: Simplify right side
    39,782.02x = 720,848,134.26
  5. Step 5: Solve for x
    x = 720,848,134.26/39,782.02
  6. Step 6: Final answer
    x = 18,119.95

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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.