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Finding the Fourth Proportional to 66,341.76, 91,486.44 and 56,297.76

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Solution

The fourth proportional to 66,341.76, 91,486.44 and 56,297.76 is: 77,635.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,341.76 : 91,486.44 = 56,297.76 : x
  2. Step 2: Convert to fraction form
    66,341.76/91,486.44 = 56,297.76/x
  3. Step 3: Cross multiply
    66,341.76x = 91,486.44 × 56,297.76
  4. Step 4: Simplify right side
    66,341.76x = 5,150,481,642.37
  5. Step 5: Solve for x
    x = 5,150,481,642.37/66,341.76
  6. Step 6: Final answer
    x = 77,635.59

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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.