Home / 54,320.79-74,961.27-30,449.01

Finding the Fourth Proportional to 54,320.79, 74,961.27 and 30,449.01

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Solution

The fourth proportional to 54,320.79, 74,961.27 and 30,449.01 is: 42,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,320.79 : 74,961.27 = 30,449.01 : x
  2. Step 2: Convert to fraction form
    54,320.79/74,961.27 = 30,449.01/x
  3. Step 3: Cross multiply
    54,320.79x = 74,961.27 × 30,449.01
  4. Step 4: Simplify right side
    54,320.79x = 2,282,496,459.84
  5. Step 5: Solve for x
    x = 2,282,496,459.84/54,320.79
  6. Step 6: Final answer
    x = 42,018.84

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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.