Home / 55,690.23-76,824.47-39,783.91

Finding the Fourth Proportional to 55,690.23, 76,824.47 and 39,783.91

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Solution

The fourth proportional to 55,690.23, 76,824.47 and 39,783.91 is: 54,881.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,690.23 : 76,824.47 = 39,783.91 : x
  2. Step 2: Convert to fraction form
    55,690.23/76,824.47 = 39,783.91/x
  3. Step 3: Cross multiply
    55,690.23x = 76,824.47 × 39,783.91
  4. Step 4: Simplify right side
    55,690.23x = 3,056,377,627.94
  5. Step 5: Solve for x
    x = 3,056,377,627.94/55,690.23
  6. Step 6: Final answer
    x = 54,881.75

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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.