Home / 78,962.04-108,965.79-43,153.02

Finding the Fourth Proportional to 78,962.04, 108,965.79 and 43,153.02

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Solution

The fourth proportional to 78,962.04, 108,965.79 and 43,153.02 is: 59,550.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,962.04 : 108,965.79 = 43,153.02 : x
  2. Step 2: Convert to fraction form
    78,962.04/108,965.79 = 43,153.02/x
  3. Step 3: Cross multiply
    78,962.04x = 108,965.79 × 43,153.02
  4. Step 4: Simplify right side
    78,962.04x = 4,702,202,915.19
  5. Step 5: Solve for x
    x = 4,702,202,915.19/78,962.04
  6. Step 6: Final answer
    x = 59,550.17

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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.