Home / 74,913.19-103,379.96-40,921.74

Finding the Fourth Proportional to 74,913.19, 103,379.96 and 40,921.74

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Solution

The fourth proportional to 74,913.19, 103,379.96 and 40,921.74 is: 56,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,913.19 : 103,379.96 = 40,921.74 : x
  2. Step 2: Convert to fraction form
    74,913.19/103,379.96 = 40,921.74/x
  3. Step 3: Cross multiply
    74,913.19x = 103,379.96 × 40,921.74
  4. Step 4: Simplify right side
    74,913.19x = 4,230,487,946.63
  5. Step 5: Solve for x
    x = 4,230,487,946.63/74,913.19
  6. Step 6: Final answer
    x = 56,471.87

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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.