Home / 78,984.64-108,999.02-43,175.08

Finding the Fourth Proportional to 78,984.64, 108,999.02 and 43,175.08

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Solution

The fourth proportional to 78,984.64, 108,999.02 and 43,175.08 is: 59,581.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,984.64 : 108,999.02 = 43,175.08 : x
  2. Step 2: Convert to fraction form
    78,984.64/108,999.02 = 43,175.08/x
  3. Step 3: Cross multiply
    78,984.64x = 108,999.02 × 43,175.08
  4. Step 4: Simplify right side
    78,984.64x = 4,706,041,408.42
  5. Step 5: Solve for x
    x = 4,706,041,408.42/78,984.64
  6. Step 6: Final answer
    x = 59,581.73

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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.