Home / 55,784.54-76,983.16-30,634.22

Finding the Fourth Proportional to 55,784.54, 76,983.16 and 30,634.22

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Solution

The fourth proportional to 55,784.54, 76,983.16 and 30,634.22 is: 42,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,784.54 : 76,983.16 = 30,634.22 : x
  2. Step 2: Convert to fraction form
    55,784.54/76,983.16 = 30,634.22/x
  3. Step 3: Cross multiply
    55,784.54x = 76,983.16 × 30,634.22
  4. Step 4: Simplify right side
    55,784.54x = 2,358,318,598.23
  5. Step 5: Solve for x
    x = 2,358,318,598.23/55,784.54
  6. Step 6: Final answer
    x = 42,275.49

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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.