Home / 75,665.04-104,416.74-42,131.04

Finding the Fourth Proportional to 75,665.04, 104,416.74 and 42,131.04

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Solution

The fourth proportional to 75,665.04, 104,416.74 and 42,131.04 is: 58,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,665.04 : 104,416.74 = 42,131.04 : x
  2. Step 2: Convert to fraction form
    75,665.04/104,416.74 = 42,131.04/x
  3. Step 3: Cross multiply
    75,665.04x = 104,416.74 × 42,131.04
  4. Step 4: Simplify right side
    75,665.04x = 4,399,185,849.61
  5. Step 5: Solve for x
    x = 4,399,185,849.61/75,665.04
  6. Step 6: Final answer
    x = 58,140.27

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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.