Home / 74,268.85-102,488.15-40,276.71

Finding the Fourth Proportional to 74,268.85, 102,488.15 and 40,276.71

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Solution

The fourth proportional to 74,268.85, 102,488.15 and 40,276.71 is: 55,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,268.85 : 102,488.15 = 40,276.71 : x
  2. Step 2: Convert to fraction form
    74,268.85/102,488.15 = 40,276.71/x
  3. Step 3: Cross multiply
    74,268.85x = 102,488.15 × 40,276.71
  4. Step 4: Simplify right side
    74,268.85x = 4,127,885,596.68
  5. Step 5: Solve for x
    x = 4,127,885,596.68/74,268.85
  6. Step 6: Final answer
    x = 55,580.31

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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.