Home / 72,068.36-108,105.26-19,477.85

Finding the Fourth Proportional to 72,068.36, 108,105.26 and 19,477.85

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Solution

The fourth proportional to 72,068.36, 108,105.26 and 19,477.85 is: 29,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,068.36 : 108,105.26 = 19,477.85 : x
  2. Step 2: Convert to fraction form
    72,068.36/108,105.26 = 19,477.85/x
  3. Step 3: Cross multiply
    72,068.36x = 108,105.26 × 19,477.85
  4. Step 4: Simplify right side
    72,068.36x = 2,105,657,400.58
  5. Step 5: Solve for x
    x = 2,105,657,400.58/72,068.36
  6. Step 6: Final answer
    x = 29,217.50

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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.