Home / 55,855.07-77,080.47-30,361.48

Finding the Fourth Proportional to 55,855.07, 77,080.47 and 30,361.48

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Solution

The fourth proportional to 55,855.07, 77,080.47 and 30,361.48 is: 41,899.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.07 : 77,080.47 = 30,361.48 : x
  2. Step 2: Convert to fraction form
    55,855.07/77,080.47 = 30,361.48/x
  3. Step 3: Cross multiply
    55,855.07x = 77,080.47 × 30,361.48
  4. Step 4: Simplify right side
    55,855.07x = 2,340,277,488.80
  5. Step 5: Solve for x
    x = 2,340,277,488.80/55,855.07
  6. Step 6: Final answer
    x = 41,899.11

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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.