Home / 92,707.02-138,716.07-55,287.45

Finding the Fourth Proportional to 92,707.02, 138,716.07 and 55,287.45

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Solution

The fourth proportional to 92,707.02, 138,716.07 and 55,287.45 is: 82,725.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,707.02 : 138,716.07 = 55,287.45 : x
  2. Step 2: Convert to fraction form
    92,707.02/138,716.07 = 55,287.45/x
  3. Step 3: Cross multiply
    92,707.02x = 138,716.07 × 55,287.45
  4. Step 4: Simplify right side
    92,707.02x = 7,669,257,784.32
  5. Step 5: Solve for x
    x = 7,669,257,784.32/92,707.02
  6. Step 6: Final answer
    x = 82,725.75

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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.