Home / 74,316.50-102,556.78-40,784.66

Finding the Fourth Proportional to 74,316.50, 102,556.78 and 40,784.66

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Solution

The fourth proportional to 74,316.50, 102,556.78 and 40,784.66 is: 56,282.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,316.50 : 102,556.78 = 40,784.66 : x
  2. Step 2: Convert to fraction form
    74,316.50/102,556.78 = 40,784.66/x
  3. Step 3: Cross multiply
    74,316.50x = 102,556.78 × 40,784.66
  4. Step 4: Simplify right side
    74,316.50x = 4,182,743,402.99
  5. Step 5: Solve for x
    x = 4,182,743,402.99/74,316.50
  6. Step 6: Final answer
    x = 56,282.84

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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.