Home / 66,065.04-99,112.70-28,631.39

Finding the Fourth Proportional to 66,065.04, 99,112.70 and 28,631.39

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Solution

The fourth proportional to 66,065.04, 99,112.70 and 28,631.39 is: 42,953.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,065.04 : 99,112.70 = 28,631.39 : x
  2. Step 2: Convert to fraction form
    66,065.04/99,112.70 = 28,631.39/x
  3. Step 3: Cross multiply
    66,065.04x = 99,112.70 × 28,631.39
  4. Step 4: Simplify right side
    66,065.04x = 2,837,734,472.28
  5. Step 5: Solve for x
    x = 2,837,734,472.28/66,065.04
  6. Step 6: Final answer
    x = 42,953.65

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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.