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Finding the Fourth Proportional to 68,783.58, 94,977.42 and 56,038.83

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Solution

The fourth proportional to 68,783.58, 94,977.42 and 56,038.83 is: 77,379.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,783.58 : 94,977.42 = 56,038.83 : x
  2. Step 2: Convert to fraction form
    68,783.58/94,977.42 = 56,038.83/x
  3. Step 3: Cross multiply
    68,783.58x = 94,977.42 × 56,038.83
  4. Step 4: Simplify right side
    68,783.58x = 5,322,423,493.22
  5. Step 5: Solve for x
    x = 5,322,423,493.22/68,783.58
  6. Step 6: Final answer
    x = 77,379.27

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1.5x scale

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.