Home / 66,111.78-99,182.28-19,365.06

Finding the Fourth Proportional to 66,111.78, 99,182.28 and 19,365.06

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Solution

The fourth proportional to 66,111.78, 99,182.28 and 19,365.06 is: 29,051.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,111.78 : 99,182.28 = 19,365.06 : x
  2. Step 2: Convert to fraction form
    66,111.78/99,182.28 = 19,365.06/x
  3. Step 3: Cross multiply
    66,111.78x = 99,182.28 × 19,365.06
  4. Step 4: Simplify right side
    66,111.78x = 1,920,670,803.14
  5. Step 5: Solve for x
    x = 1,920,670,803.14/66,111.78
  6. Step 6: Final answer
    x = 29,051.87

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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.