Home / 42,122.84-63,129.44-17,133.74

Finding the Fourth Proportional to 42,122.84, 63,129.44 and 17,133.74

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Solution

The fourth proportional to 42,122.84, 63,129.44 and 17,133.74 is: 25,678.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,122.84 : 63,129.44 = 17,133.74 : x
  2. Step 2: Convert to fraction form
    42,122.84/63,129.44 = 17,133.74/x
  3. Step 3: Cross multiply
    42,122.84x = 63,129.44 × 17,133.74
  4. Step 4: Simplify right side
    42,122.84x = 1,081,643,411.31
  5. Step 5: Solve for x
    x = 1,081,643,411.31/42,122.84
  6. Step 6: Final answer
    x = 25,678.31

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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.