Home / 55,990.26-77,267.40-30,497.81

Finding the Fourth Proportional to 55,990.26, 77,267.40 and 30,497.81

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Solution

The fourth proportional to 55,990.26, 77,267.40 and 30,497.81 is: 42,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,990.26 : 77,267.40 = 30,497.81 : x
  2. Step 2: Convert to fraction form
    55,990.26/77,267.40 = 30,497.81/x
  3. Step 3: Cross multiply
    55,990.26x = 77,267.40 × 30,497.81
  4. Step 4: Simplify right side
    55,990.26x = 2,356,485,945.57
  5. Step 5: Solve for x
    x = 2,356,485,945.57/55,990.26
  6. Step 6: Final answer
    x = 42,087.43

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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.