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Finding the Fourth Proportional to 49,509.70, 74,283.98 and 21,788.26

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Solution

The fourth proportional to 49,509.70, 74,283.98 and 21,788.26 is: 32,690.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,509.70 : 74,283.98 = 21,788.26 : x
  2. Step 2: Convert to fraction form
    49,509.70/74,283.98 = 21,788.26/x
  3. Step 3: Cross multiply
    49,509.70x = 74,283.98 × 21,788.26
  4. Step 4: Simplify right side
    49,509.70x = 1,618,518,670.07
  5. Step 5: Solve for x
    x = 1,618,518,670.07/49,509.70
  6. Step 6: Final answer
    x = 32,690.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.