Home / 55,691.23-76,825.85-39,784.91

Finding the Fourth Proportional to 55,691.23, 76,825.85 and 39,784.91

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Solution

The fourth proportional to 55,691.23, 76,825.85 and 39,784.91 is: 54,883.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,691.23 : 76,825.85 = 39,784.91 : x
  2. Step 2: Convert to fraction form
    55,691.23/76,825.85 = 39,784.91/x
  3. Step 3: Cross multiply
    55,691.23x = 76,825.85 × 39,784.91
  4. Step 4: Simplify right side
    55,691.23x = 3,056,509,527.92
  5. Step 5: Solve for x
    x = 3,056,509,527.92/55,691.23
  6. Step 6: Final answer
    x = 54,883.14

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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.