Home / 54,688.78-75,462.31-30,814.94

Finding the Fourth Proportional to 54,688.78, 75,462.31 and 30,814.94

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Solution

The fourth proportional to 54,688.78, 75,462.31 and 30,814.94 is: 42,520.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,688.78 : 75,462.31 = 30,814.94 : x
  2. Step 2: Convert to fraction form
    54,688.78/75,462.31 = 30,814.94/x
  3. Step 3: Cross multiply
    54,688.78x = 75,462.31 × 30,814.94
  4. Step 4: Simplify right side
    54,688.78x = 2,325,366,782.09
  5. Step 5: Solve for x
    x = 2,325,366,782.09/54,688.78
  6. Step 6: Final answer
    x = 42,520.00

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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.