Home / 69,030.99-103,534.34-18,430.64

Finding the Fourth Proportional to 69,030.99, 103,534.34 and 18,430.64

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Solution

The fourth proportional to 69,030.99, 103,534.34 and 18,430.64 is: 27,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,030.99 : 103,534.34 = 18,430.64 : x
  2. Step 2: Convert to fraction form
    69,030.99/103,534.34 = 18,430.64/x
  3. Step 3: Cross multiply
    69,030.99x = 103,534.34 × 18,430.64
  4. Step 4: Simplify right side
    69,030.99x = 1,908,204,508.99
  5. Step 5: Solve for x
    x = 1,908,204,508.99/69,030.99
  6. Step 6: Final answer
    x = 27,642.72

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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.