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Finding the Fourth Proportional to 104,628, 144,384 and 56,880.24

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Solution

The fourth proportional to 104,628, 144,384 and 56,880.24 is: 78,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,628 : 144,384 = 56,880.24 : x
  2. Step 2: Convert to fraction form
    104,628/144,384 = 56,880.24/x
  3. Step 3: Cross multiply
    104,628x = 144,384 × 56,880.24
  4. Step 4: Simplify right side
    104,628x = 8,212,596,572.16
  5. Step 5: Solve for x
    x = 8,212,596,572.16/104,628
  6. Step 6: Final answer
    x = 78,493.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.