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Finding the Fourth Proportional to 74,100.89, 102,259.23 and 40,566.89

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Solution

The fourth proportional to 74,100.89, 102,259.23 and 40,566.89 is: 55,982.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,100.89 : 102,259.23 = 40,566.89 : x
  2. Step 2: Convert to fraction form
    74,100.89/102,259.23 = 40,566.89/x
  3. Step 3: Cross multiply
    74,100.89x = 102,259.23 × 40,566.89
  4. Step 4: Simplify right side
    74,100.89x = 4,148,338,934.89
  5. Step 5: Solve for x
    x = 4,148,338,934.89/74,100.89
  6. Step 6: Final answer
    x = 55,982.31

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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.