Home / 66,259.68-99,378.36-18,871.44

Finding the Fourth Proportional to 66,259.68, 99,378.36 and 18,871.44

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Solution

The fourth proportional to 66,259.68, 99,378.36 and 18,871.44 is: 28,303.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,259.68 : 99,378.36 = 18,871.44 : x
  2. Step 2: Convert to fraction form
    66,259.68/99,378.36 = 18,871.44/x
  3. Step 3: Cross multiply
    66,259.68x = 99,378.36 × 18,871.44
  4. Step 4: Simplify right side
    66,259.68x = 1,875,412,758.04
  5. Step 5: Solve for x
    x = 1,875,412,758.04/66,259.68
  6. Step 6: Final answer
    x = 28,303.98

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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.