Home / 50,509.86-69,689.61-28,999.50

Finding the Fourth Proportional to 50,509.86, 69,689.61 and 28,999.50

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Solution

The fourth proportional to 50,509.86, 69,689.61 and 28,999.50 is: 40,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,509.86 : 69,689.61 = 28,999.50 : x
  2. Step 2: Convert to fraction form
    50,509.86/69,689.61 = 28,999.50/x
  3. Step 3: Cross multiply
    50,509.86x = 69,689.61 × 28,999.50
  4. Step 4: Simplify right side
    50,509.86x = 2,020,963,845.20
  5. Step 5: Solve for x
    x = 2,020,963,845.20/50,509.86
  6. Step 6: Final answer
    x = 40,011.27

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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.