Home / 50,971.05-70,340.99-28,312.14

Finding the Fourth Proportional to 50,971.05, 70,340.99 and 28,312.14

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Solution

The fourth proportional to 50,971.05, 70,340.99 and 28,312.14 is: 39,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,971.05 : 70,340.99 = 28,312.14 : x
  2. Step 2: Convert to fraction form
    50,971.05/70,340.99 = 28,312.14/x
  3. Step 3: Cross multiply
    50,971.05x = 70,340.99 × 28,312.14
  4. Step 4: Simplify right side
    50,971.05x = 1,991,503,956.62
  5. Step 5: Solve for x
    x = 1,991,503,956.62/50,971.05
  6. Step 6: Final answer
    x = 39,071.28

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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.