Home / 66,822.72-92,004.96-56,731.20

Finding the Fourth Proportional to 66,822.72, 92,004.96 and 56,731.20

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Solution

The fourth proportional to 66,822.72, 92,004.96 and 56,731.20 is: 78,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,822.72 : 92,004.96 = 56,731.20 : x
  2. Step 2: Convert to fraction form
    66,822.72/92,004.96 = 56,731.20/x
  3. Step 3: Cross multiply
    66,822.72x = 92,004.96 × 56,731.20
  4. Step 4: Simplify right side
    66,822.72x = 5,219,551,786.75
  5. Step 5: Solve for x
    x = 5,219,551,786.75/66,822.72
  6. Step 6: Final answer
    x = 78,110.44

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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.