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Finding the Fourth Proportional to 52,999.95, 79,499.97 and 19,715.70

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Solution

The fourth proportional to 52,999.95, 79,499.97 and 19,715.70 is: 29,573.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,999.95 : 79,499.97 = 19,715.70 : x
  2. Step 2: Convert to fraction form
    52,999.95/79,499.97 = 19,715.70/x
  3. Step 3: Cross multiply
    52,999.95x = 79,499.97 × 19,715.70
  4. Step 4: Simplify right side
    52,999.95x = 1,567,397,558.53
  5. Step 5: Solve for x
    x = 1,567,397,558.53/52,999.95
  6. Step 6: Final answer
    x = 29,573.57

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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.