Home / 55,991.45-77,267.04-30,498.10

Finding the Fourth Proportional to 55,991.45, 77,267.04 and 30,498.10

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Solution

The fourth proportional to 55,991.45, 77,267.04 and 30,498.10 is: 42,086.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,991.45 : 77,267.04 = 30,498.10 : x
  2. Step 2: Convert to fraction form
    55,991.45/77,267.04 = 30,498.10/x
  3. Step 3: Cross multiply
    55,991.45x = 77,267.04 × 30,498.10
  4. Step 4: Simplify right side
    55,991.45x = 2,356,497,912.62
  5. Step 5: Solve for x
    x = 2,356,497,912.62/55,991.45
  6. Step 6: Final answer
    x = 42,086.75

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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.