Home / 50,928.50-70,281.02-28,270.78

Finding the Fourth Proportional to 50,928.50, 70,281.02 and 28,270.78

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Solution

The fourth proportional to 50,928.50, 70,281.02 and 28,270.78 is: 39,013.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,928.50 : 70,281.02 = 28,270.78 : x
  2. Step 2: Convert to fraction form
    50,928.50/70,281.02 = 28,270.78/x
  3. Step 3: Cross multiply
    50,928.50x = 70,281.02 × 28,270.78
  4. Step 4: Simplify right side
    50,928.50x = 1,986,899,149.57
  5. Step 5: Solve for x
    x = 1,986,899,149.57/50,928.50
  6. Step 6: Final answer
    x = 39,013.50

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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.