Home / 54,754.15-75,560.71-30,880.77

Finding the Fourth Proportional to 54,754.15, 75,560.71 and 30,880.77

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Solution

The fourth proportional to 54,754.15, 75,560.71 and 30,880.77 is: 42,615.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,754.15 : 75,560.71 = 30,880.77 : x
  2. Step 2: Convert to fraction form
    54,754.15/75,560.71 = 30,880.77/x
  3. Step 3: Cross multiply
    54,754.15x = 75,560.71 × 30,880.77
  4. Step 4: Simplify right side
    54,754.15x = 2,333,372,640.44
  5. Step 5: Solve for x
    x = 2,333,372,640.44/54,754.15
  6. Step 6: Final answer
    x = 42,615.45

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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.