Home / 53,728.80-74,124.52-31,063.64

Finding the Fourth Proportional to 53,728.80, 74,124.52 and 31,063.64

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Solution

The fourth proportional to 53,728.80, 74,124.52 and 31,063.64 is: 42,855.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,728.80 : 74,124.52 = 31,063.64 : x
  2. Step 2: Convert to fraction form
    53,728.80/74,124.52 = 31,063.64/x
  3. Step 3: Cross multiply
    53,728.80x = 74,124.52 × 31,063.64
  4. Step 4: Simplify right side
    53,728.80x = 2,302,577,404.45
  5. Step 5: Solve for x
    x = 2,302,577,404.45/53,728.80
  6. Step 6: Final answer
    x = 42,855.55

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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.