Home / 69,420.50-104,118.18-19,488.32

Finding the Fourth Proportional to 69,420.50, 104,118.18 and 19,488.32

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Solution

The fourth proportional to 69,420.50, 104,118.18 and 19,488.32 is: 29,228.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,420.50 : 104,118.18 = 19,488.32 : x
  2. Step 2: Convert to fraction form
    69,420.50/104,118.18 = 19,488.32/x
  3. Step 3: Cross multiply
    69,420.50x = 104,118.18 × 19,488.32
  4. Step 4: Simplify right side
    69,420.50x = 2,029,088,409.66
  5. Step 5: Solve for x
    x = 2,029,088,409.66/69,420.50
  6. Step 6: Final answer
    x = 29,228.95

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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.