Home / 54,657.21-75,425.40-30,784.08

Finding the Fourth Proportional to 54,657.21, 75,425.40 and 30,784.08

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Solution

The fourth proportional to 54,657.21, 75,425.40 and 30,784.08 is: 42,481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,657.21 : 75,425.40 = 30,784.08 : x
  2. Step 2: Convert to fraction form
    54,657.21/75,425.40 = 30,784.08/x
  3. Step 3: Cross multiply
    54,657.21x = 75,425.40 × 30,784.08
  4. Step 4: Simplify right side
    54,657.21x = 2,321,901,547.63
  5. Step 5: Solve for x
    x = 2,321,901,547.63/54,657.21
  6. Step 6: Final answer
    x = 42,481.16

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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.