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Finding the Fourth Proportional to 54,681.82, 82,022.75 and 42,220.06

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Solution

The fourth proportional to 54,681.82, 82,022.75 and 42,220.06 is: 63,330.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,681.82 : 82,022.75 = 42,220.06 : x
  2. Step 2: Convert to fraction form
    54,681.82/82,022.75 = 42,220.06/x
  3. Step 3: Cross multiply
    54,681.82x = 82,022.75 × 42,220.06
  4. Step 4: Simplify right side
    54,681.82x = 3,463,005,426.37
  5. Step 5: Solve for x
    x = 3,463,005,426.37/54,681.82
  6. Step 6: Final answer
    x = 63,330.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.