Home / 78,903.72-108,883.04-43,086.74

Finding the Fourth Proportional to 78,903.72, 108,883.04 and 43,086.74

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Solution

The fourth proportional to 78,903.72, 108,883.04 and 43,086.74 is: 59,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,903.72 : 108,883.04 = 43,086.74 : x
  2. Step 2: Convert to fraction form
    78,903.72/108,883.04 = 43,086.74/x
  3. Step 3: Cross multiply
    78,903.72x = 108,883.04 × 43,086.74
  4. Step 4: Simplify right side
    78,903.72x = 4,691,414,475.04
  5. Step 5: Solve for x
    x = 4,691,414,475.04/78,903.72
  6. Step 6: Final answer
    x = 59,457.46

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1.5x scale

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.