Home / 74,810.86-103,145.61-47,909.14

Finding the Fourth Proportional to 74,810.86, 103,145.61 and 47,909.14

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Solution

The fourth proportional to 74,810.86, 103,145.61 and 47,909.14 is: 66,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,810.86 : 103,145.61 = 47,909.14 : x
  2. Step 2: Convert to fraction form
    74,810.86/103,145.61 = 47,909.14/x
  3. Step 3: Cross multiply
    74,810.86x = 103,145.61 × 47,909.14
  4. Step 4: Simplify right side
    74,810.86x = 4,941,617,469.88
  5. Step 5: Solve for x
    x = 4,941,617,469.88/74,810.86
  6. Step 6: Final answer
    x = 66,054.81

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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.