Home / 66,267.40-99,328.20-28,821.10

Finding the Fourth Proportional to 66,267.40, 99,328.20 and 28,821.10

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Solution

The fourth proportional to 66,267.40, 99,328.20 and 28,821.10 is: 43,199.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,267.40 : 99,328.20 = 28,821.10 : x
  2. Step 2: Convert to fraction form
    66,267.40/99,328.20 = 28,821.10/x
  3. Step 3: Cross multiply
    66,267.40x = 99,328.20 × 28,821.10
  4. Step 4: Simplify right side
    66,267.40x = 2,862,747,985.02
  5. Step 5: Solve for x
    x = 2,862,747,985.02/66,267.40
  6. Step 6: Final answer
    x = 43,199.94

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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.