Home / 78,333.26-108,100.02-42,523.28

Finding the Fourth Proportional to 78,333.26, 108,100.02 and 42,523.28

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Solution

The fourth proportional to 78,333.26, 108,100.02 and 42,523.28 is: 58,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,333.26 : 108,100.02 = 42,523.28 : x
  2. Step 2: Convert to fraction form
    78,333.26/108,100.02 = 42,523.28/x
  3. Step 3: Cross multiply
    78,333.26x = 108,100.02 × 42,523.28
  4. Step 4: Simplify right side
    78,333.26x = 4,596,767,418.47
  5. Step 5: Solve for x
    x = 4,596,767,418.47/78,333.26
  6. Step 6: Final answer
    x = 58,682.19

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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.