Home / 54,754.24-75,556.34-30,886.78

Finding the Fourth Proportional to 54,754.24, 75,556.34 and 30,886.78

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Solution

The fourth proportional to 54,754.24, 75,556.34 and 30,886.78 is: 42,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,754.24 : 75,556.34 = 30,886.78 : x
  2. Step 2: Convert to fraction form
    54,754.24/75,556.34 = 30,886.78/x
  3. Step 3: Cross multiply
    54,754.24x = 75,556.34 × 30,886.78
  4. Step 4: Simplify right side
    54,754.24x = 2,333,692,051.19
  5. Step 5: Solve for x
    x = 2,333,692,051.19/54,754.24
  6. Step 6: Final answer
    x = 42,621.21

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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.