Home / 54,590.81-75,336.78-30,718.32

Finding the Fourth Proportional to 54,590.81, 75,336.78 and 30,718.32

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Solution

The fourth proportional to 54,590.81, 75,336.78 and 30,718.32 is: 42,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,590.81 : 75,336.78 = 30,718.32 : x
  2. Step 2: Convert to fraction form
    54,590.81/75,336.78 = 30,718.32/x
  3. Step 3: Cross multiply
    54,590.81x = 75,336.78 × 30,718.32
  4. Step 4: Simplify right side
    54,590.81x = 2,314,219,315.81
  5. Step 5: Solve for x
    x = 2,314,219,315.81/54,590.81
  6. Step 6: Final answer
    x = 42,392.11

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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.