Home / 55,768.08-76,960.08-30,619.20

Finding the Fourth Proportional to 55,768.08, 76,960.08 and 30,619.20

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Solution

The fourth proportional to 55,768.08, 76,960.08 and 30,619.20 is: 42,254.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,768.08 : 76,960.08 = 30,619.20 : x
  2. Step 2: Convert to fraction form
    55,768.08/76,960.08 = 30,619.20/x
  3. Step 3: Cross multiply
    55,768.08x = 76,960.08 × 30,619.20
  4. Step 4: Simplify right side
    55,768.08x = 2,356,456,081.54
  5. Step 5: Solve for x
    x = 2,356,456,081.54/55,768.08
  6. Step 6: Final answer
    x = 42,254.57

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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.