Home / 66,163.30-99,181.02-42,404.28

Finding the Fourth Proportional to 66,163.30, 99,181.02 and 42,404.28

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Solution

The fourth proportional to 66,163.30, 99,181.02 and 42,404.28 is: 63,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,163.30 : 99,181.02 = 42,404.28 : x
  2. Step 2: Convert to fraction form
    66,163.30/99,181.02 = 42,404.28/x
  3. Step 3: Cross multiply
    66,163.30x = 99,181.02 × 42,404.28
  4. Step 4: Simplify right side
    66,163.30x = 4,205,699,742.77
  5. Step 5: Solve for x
    x = 4,205,699,742.77/66,163.30
  6. Step 6: Final answer
    x = 63,565.45

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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.