Home / 55,979.82-77,251.23-30,831.66

Finding the Fourth Proportional to 55,979.82, 77,251.23 and 30,831.66

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Solution

The fourth proportional to 55,979.82, 77,251.23 and 30,831.66 is: 42,547.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,979.82 : 77,251.23 = 30,831.66 : x
  2. Step 2: Convert to fraction form
    55,979.82/77,251.23 = 30,831.66/x
  3. Step 3: Cross multiply
    55,979.82x = 77,251.23 × 30,831.66
  4. Step 4: Simplify right side
    55,979.82x = 2,381,783,657.94
  5. Step 5: Solve for x
    x = 2,381,783,657.94/55,979.82
  6. Step 6: Final answer
    x = 42,547.18

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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.