Home / 54,161.30-74,749.55-30,289.32

Finding the Fourth Proportional to 54,161.30, 74,749.55 and 30,289.32

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Solution

The fourth proportional to 54,161.30, 74,749.55 and 30,289.32 is: 41,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,161.30 : 74,749.55 = 30,289.32 : x
  2. Step 2: Convert to fraction form
    54,161.30/74,749.55 = 30,289.32/x
  3. Step 3: Cross multiply
    54,161.30x = 74,749.55 × 30,289.32
  4. Step 4: Simplify right side
    54,161.30x = 2,264,113,039.81
  5. Step 5: Solve for x
    x = 2,264,113,039.81/54,161.30
  6. Step 6: Final answer
    x = 41,803.15

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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.