Home / 66,210.69-91,372.56-35,998.05

Finding the Fourth Proportional to 66,210.69, 91,372.56 and 35,998.05

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Solution

The fourth proportional to 66,210.69, 91,372.56 and 35,998.05 is: 49,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,210.69 : 91,372.56 = 35,998.05 : x
  2. Step 2: Convert to fraction form
    66,210.69/91,372.56 = 35,998.05/x
  3. Step 3: Cross multiply
    66,210.69x = 91,372.56 × 35,998.05
  4. Step 4: Simplify right side
    66,210.69x = 3,289,233,420.21
  5. Step 5: Solve for x
    x = 3,289,233,420.21/66,210.69
  6. Step 6: Final answer
    x = 49,678.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.