Home / 76,841.31-106,037.73-56,690.94

Finding the Fourth Proportional to 76,841.31, 106,037.73 and 56,690.94

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Solution

The fourth proportional to 76,841.31, 106,037.73 and 56,690.94 is: 78,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,841.31 : 106,037.73 = 56,690.94 : x
  2. Step 2: Convert to fraction form
    76,841.31/106,037.73 = 56,690.94/x
  3. Step 3: Cross multiply
    76,841.31x = 106,037.73 × 56,690.94
  4. Step 4: Simplify right side
    76,841.31x = 6,011,378,589.17
  5. Step 5: Solve for x
    x = 6,011,378,589.17/76,841.31
  6. Step 6: Final answer
    x = 78,231.08

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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.