Home / 66,741.96-92,094.78-39,878.76

Finding the Fourth Proportional to 66,741.96, 92,094.78 and 39,878.76

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Solution

The fourth proportional to 66,741.96, 92,094.78 and 39,878.76 is: 55,027.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,741.96 : 92,094.78 = 39,878.76 : x
  2. Step 2: Convert to fraction form
    66,741.96/92,094.78 = 39,878.76/x
  3. Step 3: Cross multiply
    66,741.96x = 92,094.78 × 39,878.76
  4. Step 4: Simplify right side
    66,741.96x = 3,672,625,628.87
  5. Step 5: Solve for x
    x = 3,672,625,628.87/66,741.96
  6. Step 6: Final answer
    x = 55,027.24

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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.