Home / 66,243.30-99,362.67-18,858.69

Finding the Fourth Proportional to 66,243.30, 99,362.67 and 18,858.69

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Solution

The fourth proportional to 66,243.30, 99,362.67 and 18,858.69 is: 28,287.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,243.30 : 99,362.67 = 18,858.69 : x
  2. Step 2: Convert to fraction form
    66,243.30/99,362.67 = 18,858.69/x
  3. Step 3: Cross multiply
    66,243.30x = 99,362.67 × 18,858.69
  4. Step 4: Simplify right side
    66,243.30x = 1,873,849,294.29
  5. Step 5: Solve for x
    x = 1,873,849,294.29/66,243.30
  6. Step 6: Final answer
    x = 28,287.38

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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.