Home / 276,903.26-415,354.85-66,541.20

Finding the Fourth Proportional to 276,903.26, 415,354.85 and 66,541.20

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Solution

The fourth proportional to 276,903.26, 415,354.85 and 66,541.20 is: 99,811.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,903.26 : 415,354.85 = 66,541.20 : x
  2. Step 2: Convert to fraction form
    276,903.26/415,354.85 = 66,541.20/x
  3. Step 3: Cross multiply
    276,903.26x = 415,354.85 × 66,541.20
  4. Step 4: Simplify right side
    276,903.26x = 27,638,209,812.11
  5. Step 5: Solve for x
    x = 27,638,209,812.11/276,903.26
  6. Step 6: Final answer
    x = 99,811.79

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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.