Home / 54,447.12-75,130.20-30,573.72

Finding the Fourth Proportional to 54,447.12, 75,130.20 and 30,573.72

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Solution

The fourth proportional to 54,447.12, 75,130.20 and 30,573.72 is: 42,187.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,447.12 : 75,130.20 = 30,573.72 : x
  2. Step 2: Convert to fraction form
    54,447.12/75,130.20 = 30,573.72/x
  3. Step 3: Cross multiply
    54,447.12x = 75,130.20 × 30,573.72
  4. Step 4: Simplify right side
    54,447.12x = 2,297,009,698.34
  5. Step 5: Solve for x
    x = 2,297,009,698.34/54,447.12
  6. Step 6: Final answer
    x = 42,187.90

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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.