Home / 71,845.55-107,769.69-19,254.59

Finding the Fourth Proportional to 71,845.55, 107,769.69 and 19,254.59

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Solution

The fourth proportional to 71,845.55, 107,769.69 and 19,254.59 is: 28,882.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,845.55 : 107,769.69 = 19,254.59 : x
  2. Step 2: Convert to fraction form
    71,845.55/107,769.69 = 19,254.59/x
  3. Step 3: Cross multiply
    71,845.55x = 107,769.69 × 19,254.59
  4. Step 4: Simplify right side
    71,845.55x = 2,075,060,656.53
  5. Step 5: Solve for x
    x = 2,075,060,656.53/71,845.55
  6. Step 6: Final answer
    x = 28,882.25

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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.