Home / 72,559.17-108,858.44-30,417.09

Finding the Fourth Proportional to 72,559.17, 108,858.44 and 30,417.09

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Solution

The fourth proportional to 72,559.17, 108,858.44 and 30,417.09 is: 45,633.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,559.17 : 108,858.44 = 30,417.09 : x
  2. Step 2: Convert to fraction form
    72,559.17/108,858.44 = 30,417.09/x
  3. Step 3: Cross multiply
    72,559.17x = 108,858.44 × 30,417.09
  4. Step 4: Simplify right side
    72,559.17x = 3,311,156,966.74
  5. Step 5: Solve for x
    x = 3,311,156,966.74/72,559.17
  6. Step 6: Final answer
    x = 45,633.89

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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.