Home / 54,559.78-75,292.20-30,686.45

Finding the Fourth Proportional to 54,559.78, 75,292.20 and 30,686.45

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Solution

The fourth proportional to 54,559.78, 75,292.20 and 30,686.45 is: 42,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,559.78 : 75,292.20 = 30,686.45 : x
  2. Step 2: Convert to fraction form
    54,559.78/75,292.20 = 30,686.45/x
  3. Step 3: Cross multiply
    54,559.78x = 75,292.20 × 30,686.45
  4. Step 4: Simplify right side
    54,559.78x = 2,310,449,954.23
  5. Step 5: Solve for x
    x = 2,310,449,954.23/54,559.78
  6. Step 6: Final answer
    x = 42,347.13

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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.