Home / 79,513.04-119,259.30-66,268.78

Finding the Fourth Proportional to 79,513.04, 119,259.30 and 66,268.78

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Solution

The fourth proportional to 79,513.04, 119,259.30 and 66,268.78 is: 99,394.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,513.04 : 119,259.30 = 66,268.78 : x
  2. Step 2: Convert to fraction form
    79,513.04/119,259.30 = 66,268.78/x
  3. Step 3: Cross multiply
    79,513.04x = 119,259.30 × 66,268.78
  4. Step 4: Simplify right side
    79,513.04x = 7,903,168,265.01
  5. Step 5: Solve for x
    x = 7,903,168,265.01/79,513.04
  6. Step 6: Final answer
    x = 99,394.62

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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.