Home / 74,559.09-102,888.46-40,567.71

Finding the Fourth Proportional to 74,559.09, 102,888.46 and 40,567.71

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Solution

The fourth proportional to 74,559.09, 102,888.46 and 40,567.71 is: 55,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,559.09 : 102,888.46 = 40,567.71 : x
  2. Step 2: Convert to fraction form
    74,559.09/102,888.46 = 40,567.71/x
  3. Step 3: Cross multiply
    74,559.09x = 102,888.46 × 40,567.71
  4. Step 4: Simplify right side
    74,559.09x = 4,173,949,004.79
  5. Step 5: Solve for x
    x = 4,173,949,004.79/74,559.09
  6. Step 6: Final answer
    x = 55,981.76

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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.