Home / 55,850.05-77,072.20-30,699.01

Finding the Fourth Proportional to 55,850.05, 77,072.20 and 30,699.01

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Solution

The fourth proportional to 55,850.05, 77,072.20 and 30,699.01 is: 42,364.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,850.05 : 77,072.20 = 30,699.01 : x
  2. Step 2: Convert to fraction form
    55,850.05/77,072.20 = 30,699.01/x
  3. Step 3: Cross multiply
    55,850.05x = 77,072.20 × 30,699.01
  4. Step 4: Simplify right side
    55,850.05x = 2,366,040,238.52
  5. Step 5: Solve for x
    x = 2,366,040,238.52/55,850.05
  6. Step 6: Final answer
    x = 42,364.16

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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.