Home / 55,990.45-77,265.66-30,497.10

Finding the Fourth Proportional to 55,990.45, 77,265.66 and 30,497.10

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Solution

The fourth proportional to 55,990.45, 77,265.66 and 30,497.10 is: 42,085.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,990.45 : 77,265.66 = 30,497.10 : x
  2. Step 2: Convert to fraction form
    55,990.45/77,265.66 = 30,497.10/x
  3. Step 3: Cross multiply
    55,990.45x = 77,265.66 × 30,497.10
  4. Step 4: Simplify right side
    55,990.45x = 2,356,378,559.59
  5. Step 5: Solve for x
    x = 2,356,378,559.59/55,990.45
  6. Step 6: Final answer
    x = 42,085.37

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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.