Home / 55,851.12-77,073.72-30,356.64

Finding the Fourth Proportional to 55,851.12, 77,073.72 and 30,356.64

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Solution

The fourth proportional to 55,851.12, 77,073.72 and 30,356.64 is: 41,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,851.12 : 77,073.72 = 30,356.64 : x
  2. Step 2: Convert to fraction form
    55,851.12/77,073.72 = 30,356.64/x
  3. Step 3: Cross multiply
    55,851.12x = 77,073.72 × 30,356.64
  4. Step 4: Simplify right side
    55,851.12x = 2,339,699,171.50
  5. Step 5: Solve for x
    x = 2,339,699,171.50/55,851.12
  6. Step 6: Final answer
    x = 41,891.71

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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.