Home / 74,700.04-103,086.07-40,708.54

Finding the Fourth Proportional to 74,700.04, 103,086.07 and 40,708.54

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Solution

The fourth proportional to 74,700.04, 103,086.07 and 40,708.54 is: 56,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,700.04 : 103,086.07 = 40,708.54 : x
  2. Step 2: Convert to fraction form
    74,700.04/103,086.07 = 40,708.54/x
  3. Step 3: Cross multiply
    74,700.04x = 103,086.07 × 40,708.54
  4. Step 4: Simplify right side
    74,700.04x = 4,196,483,080.25
  5. Step 5: Solve for x
    x = 4,196,483,080.25/74,700.04
  6. Step 6: Final answer
    x = 56,177.79

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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.