Home / 54,594.45-75,339.86-30,720.65

Finding the Fourth Proportional to 54,594.45, 75,339.86 and 30,720.65

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Solution

The fourth proportional to 54,594.45, 75,339.86 and 30,720.65 is: 42,394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,594.45 : 75,339.86 = 30,720.65 : x
  2. Step 2: Convert to fraction form
    54,594.45/75,339.86 = 30,720.65/x
  3. Step 3: Cross multiply
    54,594.45x = 75,339.86 × 30,720.65
  4. Step 4: Simplify right side
    54,594.45x = 2,314,488,939.81
  5. Step 5: Solve for x
    x = 2,314,488,939.81/54,594.45
  6. Step 6: Final answer
    x = 42,394.22

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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.