Home / 56,768.07-77,772.62-54,639.80

Finding the Fourth Proportional to 56,768.07, 77,772.62 and 54,639.80

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Solution

The fourth proportional to 56,768.07, 77,772.62 and 54,639.80 is: 74,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,768.07 : 77,772.62 = 54,639.80 : x
  2. Step 2: Convert to fraction form
    56,768.07/77,772.62 = 54,639.80/x
  3. Step 3: Cross multiply
    56,768.07x = 77,772.62 × 54,639.80
  4. Step 4: Simplify right side
    56,768.07x = 4,249,480,441.66
  5. Step 5: Solve for x
    x = 4,249,480,441.66/56,768.07
  6. Step 6: Final answer
    x = 74,856.87

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.