Home / 69,620.48-104,430.72-66,646.16

Finding the Fourth Proportional to 69,620.48, 104,430.72 and 66,646.16

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Solution

The fourth proportional to 69,620.48, 104,430.72 and 66,646.16 is: 99,969.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,620.48 : 104,430.72 = 66,646.16 : x
  2. Step 2: Convert to fraction form
    69,620.48/104,430.72 = 66,646.16/x
  3. Step 3: Cross multiply
    69,620.48x = 104,430.72 × 66,646.16
  4. Step 4: Simplify right side
    69,620.48x = 6,959,906,474.04
  5. Step 5: Solve for x
    x = 6,959,906,474.04/69,620.48
  6. Step 6: Final answer
    x = 99,969.24

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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.