Home / 75,969.20-104,837.40-42,435.20

Finding the Fourth Proportional to 75,969.20, 104,837.40 and 42,435.20

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Solution

The fourth proportional to 75,969.20, 104,837.40 and 42,435.20 is: 58,560.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,969.20 : 104,837.40 = 42,435.20 : x
  2. Step 2: Convert to fraction form
    75,969.20/104,837.40 = 42,435.20/x
  3. Step 3: Cross multiply
    75,969.20x = 104,837.40 × 42,435.20
  4. Step 4: Simplify right side
    75,969.20x = 4,448,796,036.48
  5. Step 5: Solve for x
    x = 4,448,796,036.48/75,969.20
  6. Step 6: Final answer
    x = 58,560.52

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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.