Home / 78,333.33-108,100.17-42,523.32

Finding the Fourth Proportional to 78,333.33, 108,100.17 and 42,523.32

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Solution

The fourth proportional to 78,333.33, 108,100.17 and 42,523.32 is: 58,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,333.33 : 108,100.17 = 42,523.32 : x
  2. Step 2: Convert to fraction form
    78,333.33/108,100.17 = 42,523.32/x
  3. Step 3: Cross multiply
    78,333.33x = 108,100.17 × 42,523.32
  4. Step 4: Simplify right side
    78,333.33x = 4,596,778,120.96
  5. Step 5: Solve for x
    x = 4,596,778,120.96/78,333.33
  6. Step 6: Final answer
    x = 58,682.28

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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.