Home / 66,065.42-99,113.26-28,631.77

Finding the Fourth Proportional to 66,065.42, 99,113.26 and 28,631.77

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Solution

The fourth proportional to 66,065.42, 99,113.26 and 28,631.77 is: 42,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,065.42 : 99,113.26 = 28,631.77 : x
  2. Step 2: Convert to fraction form
    66,065.42/99,113.26 = 28,631.77/x
  3. Step 3: Cross multiply
    66,065.42x = 99,113.26 × 28,631.77
  4. Step 4: Simplify right side
    66,065.42x = 2,837,788,064.27
  5. Step 5: Solve for x
    x = 2,837,788,064.27/66,065.42
  6. Step 6: Final answer
    x = 42,954.21

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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.