Home / 55,784.64-76,982.79-30,634.14

Finding the Fourth Proportional to 55,784.64, 76,982.79 and 30,634.14

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Solution

The fourth proportional to 55,784.64, 76,982.79 and 30,634.14 is: 42,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,784.64 : 76,982.79 = 30,634.14 : x
  2. Step 2: Convert to fraction form
    55,784.64/76,982.79 = 30,634.14/x
  3. Step 3: Cross multiply
    55,784.64x = 76,982.79 × 30,634.14
  4. Step 4: Simplify right side
    55,784.64x = 2,358,301,566.45
  5. Step 5: Solve for x
    x = 2,358,301,566.45/55,784.64
  6. Step 6: Final answer
    x = 42,275.11

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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.