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Finding the Fourth Proportional to 56,779.82, 78,338.80 and 32,901.88

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Solution

The fourth proportional to 56,779.82, 78,338.80 and 32,901.88 is: 45,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,779.82 : 78,338.80 = 32,901.88 : x
  2. Step 2: Convert to fraction form
    56,779.82/78,338.80 = 32,901.88/x
  3. Step 3: Cross multiply
    56,779.82x = 78,338.80 × 32,901.88
  4. Step 4: Simplify right side
    56,779.82x = 2,577,493,796.94
  5. Step 5: Solve for x
    x = 2,577,493,796.94/56,779.82
  6. Step 6: Final answer
    x = 45,394.54

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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.