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Finding the Fourth Proportional to 55,259.70, 82,897.78 and 19,718.25

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Solution

The fourth proportional to 55,259.70, 82,897.78 and 19,718.25 is: 29,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,259.70 : 82,897.78 = 19,718.25 : x
  2. Step 2: Convert to fraction form
    55,259.70/82,897.78 = 19,718.25/x
  3. Step 3: Cross multiply
    55,259.70x = 82,897.78 × 19,718.25
  4. Step 4: Simplify right side
    55,259.70x = 1,634,599,150.49
  5. Step 5: Solve for x
    x = 1,634,599,150.49/55,259.70
  6. Step 6: Final answer
    x = 29,580.31

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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.