Home / 50,981.30-70,356.35-28,320.18

Finding the Fourth Proportional to 50,981.30, 70,356.35 and 28,320.18

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Solution

The fourth proportional to 50,981.30, 70,356.35 and 28,320.18 is: 39,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,981.30 : 70,356.35 = 28,320.18 : x
  2. Step 2: Convert to fraction form
    50,981.30/70,356.35 = 28,320.18/x
  3. Step 3: Cross multiply
    50,981.30x = 70,356.35 × 28,320.18
  4. Step 4: Simplify right side
    50,981.30x = 1,992,504,539.56
  5. Step 5: Solve for x
    x = 1,992,504,539.56/50,981.30
  6. Step 6: Final answer
    x = 39,083.05

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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.