Home / 50,879.95-70,133.45-40,107.35

Finding the Fourth Proportional to 50,879.95, 70,133.45 and 40,107.35

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Solution

The fourth proportional to 50,879.95, 70,133.45 and 40,107.35 is: 55,284.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,879.95 : 70,133.45 = 40,107.35 : x
  2. Step 2: Convert to fraction form
    50,879.95/70,133.45 = 40,107.35/x
  3. Step 3: Cross multiply
    50,879.95x = 70,133.45 × 40,107.35
  4. Step 4: Simplify right side
    50,879.95x = 2,812,866,800.65
  5. Step 5: Solve for x
    x = 2,812,866,800.65/50,879.95
  6. Step 6: Final answer
    x = 55,284.39

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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.