Home / 72,548.10-100,131.30-45,672.57

Finding the Fourth Proportional to 72,548.10, 100,131.30 and 45,672.57

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Solution

The fourth proportional to 72,548.10, 100,131.30 and 45,672.57 is: 63,037.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,548.10 : 100,131.30 = 45,672.57 : x
  2. Step 2: Convert to fraction form
    72,548.10/100,131.30 = 45,672.57/x
  3. Step 3: Cross multiply
    72,548.10x = 100,131.30 × 45,672.57
  4. Step 4: Simplify right side
    72,548.10x = 4,573,253,808.44
  5. Step 5: Solve for x
    x = 4,573,253,808.44/72,548.10
  6. Step 6: Final answer
    x = 63,037.54

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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.