Home / 75,940.12-104,798.94-42,406.12

Finding the Fourth Proportional to 75,940.12, 104,798.94 and 42,406.12

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Solution

The fourth proportional to 75,940.12, 104,798.94 and 42,406.12 is: 58,521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,940.12 : 104,798.94 = 42,406.12 : x
  2. Step 2: Convert to fraction form
    75,940.12/104,798.94 = 42,406.12/x
  3. Step 3: Cross multiply
    75,940.12x = 104,798.94 × 42,406.12
  4. Step 4: Simplify right side
    75,940.12x = 4,444,116,425.51
  5. Step 5: Solve for x
    x = 4,444,116,425.51/75,940.12
  6. Step 6: Final answer
    x = 58,521.32

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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.