Home / 76,943.04-106,186.74-42,958.22

Finding the Fourth Proportional to 76,943.04, 106,186.74 and 42,958.22

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Solution

The fourth proportional to 76,943.04, 106,186.74 and 42,958.22 is: 59,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,943.04 : 106,186.74 = 42,958.22 : x
  2. Step 2: Convert to fraction form
    76,943.04/106,186.74 = 42,958.22/x
  3. Step 3: Cross multiply
    76,943.04x = 106,186.74 × 42,958.22
  4. Step 4: Simplify right side
    76,943.04x = 4,561,593,338.00
  5. Step 5: Solve for x
    x = 4,561,593,338.00/76,943.04
  6. Step 6: Final answer
    x = 59,285.33

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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.