Home / 55,856.84-77,088.66-30,705.80

Finding the Fourth Proportional to 55,856.84, 77,088.66 and 30,705.80

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Solution

The fourth proportional to 55,856.84, 77,088.66 and 30,705.80 is: 42,377.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,856.84 : 77,088.66 = 30,705.80 : x
  2. Step 2: Convert to fraction form
    55,856.84/77,088.66 = 30,705.80/x
  3. Step 3: Cross multiply
    55,856.84x = 77,088.66 × 30,705.80
  4. Step 4: Simplify right side
    55,856.84x = 2,367,068,976.23
  5. Step 5: Solve for x
    x = 2,367,068,976.23/55,856.84
  6. Step 6: Final answer
    x = 42,377.42

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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.