Home / 54,356.78-75,011.24-30,482.98

Finding the Fourth Proportional to 54,356.78, 75,011.24 and 30,482.98

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Solution

The fourth proportional to 54,356.78, 75,011.24 and 30,482.98 is: 42,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,356.78 : 75,011.24 = 30,482.98 : x
  2. Step 2: Convert to fraction form
    54,356.78/75,011.24 = 30,482.98/x
  3. Step 3: Cross multiply
    54,356.78x = 75,011.24 × 30,482.98
  4. Step 4: Simplify right side
    54,356.78x = 2,286,566,128.70
  5. Step 5: Solve for x
    x = 2,286,566,128.70/54,356.78
  6. Step 6: Final answer
    x = 42,065.89

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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.