Home / 78,983.04-108,987.12-44,991.60

Finding the Fourth Proportional to 78,983.04, 108,987.12 and 44,991.60

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Solution

The fourth proportional to 78,983.04, 108,987.12 and 44,991.60 is: 62,083.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,983.04 : 108,987.12 = 44,991.60 : x
  2. Step 2: Convert to fraction form
    78,983.04/108,987.12 = 44,991.60/x
  3. Step 3: Cross multiply
    78,983.04x = 108,987.12 × 44,991.60
  4. Step 4: Simplify right side
    78,983.04x = 4,903,504,908.19
  5. Step 5: Solve for x
    x = 4,903,504,908.19/78,983.04
  6. Step 6: Final answer
    x = 62,083.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.