Home / 50,102.16-69,139.80-28,880.16

Finding the Fourth Proportional to 50,102.16, 69,139.80 and 28,880.16

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Solution

The fourth proportional to 50,102.16, 69,139.80 and 28,880.16 is: 39,853.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,102.16 : 69,139.80 = 28,880.16 : x
  2. Step 2: Convert to fraction form
    50,102.16/69,139.80 = 28,880.16/x
  3. Step 3: Cross multiply
    50,102.16x = 69,139.80 × 28,880.16
  4. Step 4: Simplify right side
    50,102.16x = 1,996,768,486.37
  5. Step 5: Solve for x
    x = 1,996,768,486.37/50,102.16
  6. Step 6: Final answer
    x = 39,853.94

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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.