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Finding the Fourth Proportional to 50,145.30, 70,072.20 and 50,145.30

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Solution

The fourth proportional to 50,145.30, 70,072.20 and 50,145.30 is: 70,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,145.30 : 70,072.20 = 50,145.30 : x
  2. Step 2: Convert to fraction form
    50,145.30/70,072.20 = 50,145.30/x
  3. Step 3: Cross multiply
    50,145.30x = 70,072.20 × 50,145.30
  4. Step 4: Simplify right side
    50,145.30x = 3,513,791,490.66
  5. Step 5: Solve for x
    x = 3,513,791,490.66/50,145.30
  6. Step 6: Final answer
    x = 70,072.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.