Home / 66,259.26-99,368.66-18,878.22

Finding the Fourth Proportional to 66,259.26, 99,368.66 and 18,878.22

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Solution

The fourth proportional to 66,259.26, 99,368.66 and 18,878.22 is: 28,311.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,259.26 : 99,368.66 = 18,878.22 : x
  2. Step 2: Convert to fraction form
    66,259.26/99,368.66 = 18,878.22/x
  3. Step 3: Cross multiply
    66,259.26x = 99,368.66 × 18,878.22
  4. Step 4: Simplify right side
    66,259.26x = 1,875,903,424.59
  5. Step 5: Solve for x
    x = 1,875,903,424.59/66,259.26
  6. Step 6: Final answer
    x = 28,311.57

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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.