Home / 76,845.04-106,046.75-42,855.68

Finding the Fourth Proportional to 76,845.04, 106,046.75 and 42,855.68

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Solution

The fourth proportional to 76,845.04, 106,046.75 and 42,855.68 is: 59,141.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,845.04 : 106,046.75 = 42,855.68 : x
  2. Step 2: Convert to fraction form
    76,845.04/106,046.75 = 42,855.68/x
  3. Step 3: Cross multiply
    76,845.04x = 106,046.75 × 42,855.68
  4. Step 4: Simplify right side
    76,845.04x = 4,544,705,955.30
  5. Step 5: Solve for x
    x = 4,544,705,955.30/76,845.04
  6. Step 6: Final answer
    x = 59,141.18

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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.