Home / 66,403.13-99,624.20-19,657.22

Finding the Fourth Proportional to 66,403.13, 99,624.20 and 19,657.22

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Solution

The fourth proportional to 66,403.13, 99,624.20 and 19,657.22 is: 29,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,403.13 : 99,624.20 = 19,657.22 : x
  2. Step 2: Convert to fraction form
    66,403.13/99,624.20 = 19,657.22/x
  3. Step 3: Cross multiply
    66,403.13x = 99,624.20 × 19,657.22
  4. Step 4: Simplify right side
    66,403.13x = 1,958,334,220.32
  5. Step 5: Solve for x
    x = 1,958,334,220.32/66,403.13
  6. Step 6: Final answer
    x = 29,491.60

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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.