Home / 55,783.43-76,994.81-34,278.39

Finding the Fourth Proportional to 55,783.43, 76,994.81 and 34,278.39

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Solution

The fourth proportional to 55,783.43, 76,994.81 and 34,278.39 is: 47,312.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,783.43 : 76,994.81 = 34,278.39 : x
  2. Step 2: Convert to fraction form
    55,783.43/76,994.81 = 34,278.39/x
  3. Step 3: Cross multiply
    55,783.43x = 76,994.81 × 34,278.39
  4. Step 4: Simplify right side
    55,783.43x = 2,639,257,817.56
  5. Step 5: Solve for x
    x = 2,639,257,817.56/55,783.43
  6. Step 6: Final answer
    x = 47,312.58

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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.