Home / 54,621.51-75,379.10-30,749.05

Finding the Fourth Proportional to 54,621.51, 75,379.10 and 30,749.05

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Solution

The fourth proportional to 54,621.51, 75,379.10 and 30,749.05 is: 42,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,621.51 : 75,379.10 = 30,749.05 : x
  2. Step 2: Convert to fraction form
    54,621.51/75,379.10 = 30,749.05/x
  3. Step 3: Cross multiply
    54,621.51x = 75,379.10 × 30,749.05
  4. Step 4: Simplify right side
    54,621.51x = 2,317,835,714.86
  5. Step 5: Solve for x
    x = 2,317,835,714.86/54,621.51
  6. Step 6: Final answer
    x = 42,434.49

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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.