Home / 74,909.95-103,378.77-43,078.86

Finding the Fourth Proportional to 74,909.95, 103,378.77 and 43,078.86

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Solution

The fourth proportional to 74,909.95, 103,378.77 and 43,078.86 is: 59,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,909.95 : 103,378.77 = 43,078.86 : x
  2. Step 2: Convert to fraction form
    74,909.95/103,378.77 = 43,078.86/x
  3. Step 3: Cross multiply
    74,909.95x = 103,378.77 × 43,078.86
  4. Step 4: Simplify right side
    74,909.95x = 4,453,439,559.80
  5. Step 5: Solve for x
    x = 4,453,439,559.80/74,909.95
  6. Step 6: Final answer
    x = 59,450.58

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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.