Home / 72,618.48-109,110.96-69,666.12

Finding the Fourth Proportional to 72,618.48, 109,110.96 and 69,666.12

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Solution

The fourth proportional to 72,618.48, 109,110.96 and 69,666.12 is: 104,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,618.48 : 109,110.96 = 69,666.12 : x
  2. Step 2: Convert to fraction form
    72,618.48/109,110.96 = 69,666.12/x
  3. Step 3: Cross multiply
    72,618.48x = 109,110.96 × 69,666.12
  4. Step 4: Simplify right side
    72,618.48x = 7,601,337,232.68
  5. Step 5: Solve for x
    x = 7,601,337,232.68/72,618.48
  6. Step 6: Final answer
    x = 104,674.97

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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.