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Finding the Fourth Proportional to 50,894.64, 76,374.81 and 19,729.89

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Solution

The fourth proportional to 50,894.64, 76,374.81 and 19,729.89 is: 29,607.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,894.64 : 76,374.81 = 19,729.89 : x
  2. Step 2: Convert to fraction form
    50,894.64/76,374.81 = 19,729.89/x
  3. Step 3: Cross multiply
    50,894.64x = 76,374.81 × 19,729.89
  4. Step 4: Simplify right side
    50,894.64x = 1,506,866,600.07
  5. Step 5: Solve for x
    x = 1,506,866,600.07/50,894.64
  6. Step 6: Final answer
    x = 29,607.57

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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.