Home / 75,625.50-104,363.19-42,090.78

Finding the Fourth Proportional to 75,625.50, 104,363.19 and 42,090.78

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Solution

The fourth proportional to 75,625.50, 104,363.19 and 42,090.78 is: 58,085.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,625.50 : 104,363.19 = 42,090.78 : x
  2. Step 2: Convert to fraction form
    75,625.50/104,363.19 = 42,090.78/x
  3. Step 3: Cross multiply
    75,625.50x = 104,363.19 × 42,090.78
  4. Step 4: Simplify right side
    75,625.50x = 4,392,728,070.39
  5. Step 5: Solve for x
    x = 4,392,728,070.39/75,625.50
  6. Step 6: Final answer
    x = 58,085.28

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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.