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Finding the Fourth Proportional to 50,926.50, 70,285.05 and 28,570.50

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Solution

The fourth proportional to 50,926.50, 70,285.05 and 28,570.50 is: 39,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,926.50 : 70,285.05 = 28,570.50 : x
  2. Step 2: Convert to fraction form
    50,926.50/70,285.05 = 28,570.50/x
  3. Step 3: Cross multiply
    50,926.50x = 70,285.05 × 28,570.50
  4. Step 4: Simplify right side
    50,926.50x = 2,008,079,021.03
  5. Step 5: Solve for x
    x = 2,008,079,021.03/50,926.50
  6. Step 6: Final answer
    x = 39,430.93

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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.