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Finding the Fourth Proportional to 50,877.50, 70,208.50 and 28,214.70

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Solution

The fourth proportional to 50,877.50, 70,208.50 and 28,214.70 is: 38,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,877.50 : 70,208.50 = 28,214.70 : x
  2. Step 2: Convert to fraction form
    50,877.50/70,208.50 = 28,214.70/x
  3. Step 3: Cross multiply
    50,877.50x = 70,208.50 × 28,214.70
  4. Step 4: Simplify right side
    50,877.50x = 1,980,911,764.95
  5. Step 5: Solve for x
    x = 1,980,911,764.95/50,877.50
  6. Step 6: Final answer
    x = 38,934.93

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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.