Home / 55,828.82-77,044.38-30,678.32

Finding the Fourth Proportional to 55,828.82, 77,044.38 and 30,678.32

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Solution

The fourth proportional to 55,828.82, 77,044.38 and 30,678.32 is: 42,336.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,828.82 : 77,044.38 = 30,678.32 : x
  2. Step 2: Convert to fraction form
    55,828.82/77,044.38 = 30,678.32/x
  3. Step 3: Cross multiply
    55,828.82x = 77,044.38 × 30,678.32
  4. Step 4: Simplify right side
    55,828.82x = 2,363,592,143.84
  5. Step 5: Solve for x
    x = 2,363,592,143.84/55,828.82
  6. Step 6: Final answer
    x = 42,336.42

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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.