Home / 61,278.94-91,918.49-19,159.25

Finding the Fourth Proportional to 61,278.94, 91,918.49 and 19,159.25

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Solution

The fourth proportional to 61,278.94, 91,918.49 and 19,159.25 is: 28,738.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,278.94 : 91,918.49 = 19,159.25 : x
  2. Step 2: Convert to fraction form
    61,278.94/91,918.49 = 19,159.25/x
  3. Step 3: Cross multiply
    61,278.94x = 91,918.49 × 19,159.25
  4. Step 4: Simplify right side
    61,278.94x = 1,761,088,982.41
  5. Step 5: Solve for x
    x = 1,761,088,982.41/61,278.94
  6. Step 6: Final answer
    x = 28,738.89

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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.