Home / 74,913.16-103,421.64-51,074.86

Finding the Fourth Proportional to 74,913.16, 103,421.64 and 51,074.86

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Solution

The fourth proportional to 74,913.16, 103,421.64 and 51,074.86 is: 70,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,913.16 : 103,421.64 = 51,074.86 : x
  2. Step 2: Convert to fraction form
    74,913.16/103,421.64 = 51,074.86/x
  3. Step 3: Cross multiply
    74,913.16x = 103,421.64 × 51,074.86
  4. Step 4: Simplify right side
    74,913.16x = 5,282,245,783.97
  5. Step 5: Solve for x
    x = 5,282,245,783.97/74,913.16
  6. Step 6: Final answer
    x = 70,511.59

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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.