Home / 78,333.21-108,099.90-42,523.23

Finding the Fourth Proportional to 78,333.21, 108,099.90 and 42,523.23

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Solution

The fourth proportional to 78,333.21, 108,099.90 and 42,523.23 is: 58,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,333.21 : 108,099.90 = 42,523.23 : x
  2. Step 2: Convert to fraction form
    78,333.21/108,099.90 = 42,523.23/x
  3. Step 3: Cross multiply
    78,333.21x = 108,099.90 × 42,523.23
  4. Step 4: Simplify right side
    78,333.21x = 4,596,756,910.68
  5. Step 5: Solve for x
    x = 4,596,756,910.68/78,333.21
  6. Step 6: Final answer
    x = 58,682.10

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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.