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Finding the Fourth Proportional to 50,408.95, 69,570.98 and 28,907.11

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Solution

The fourth proportional to 50,408.95, 69,570.98 and 28,907.11 is: 39,895.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,408.95 : 69,570.98 = 28,907.11 : x
  2. Step 2: Convert to fraction form
    50,408.95/69,570.98 = 28,907.11/x
  3. Step 3: Cross multiply
    50,408.95x = 69,570.98 × 28,907.11
  4. Step 4: Simplify right side
    50,408.95x = 2,011,095,971.67
  5. Step 5: Solve for x
    x = 2,011,095,971.67/50,408.95
  6. Step 6: Final answer
    x = 39,895.61

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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.