Home / 74,192.88-102,390.48-45,515.76

Finding the Fourth Proportional to 74,192.88, 102,390.48 and 45,515.76

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Solution

The fourth proportional to 74,192.88, 102,390.48 and 45,515.76 is: 62,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,192.88 : 102,390.48 = 45,515.76 : x
  2. Step 2: Convert to fraction form
    74,192.88/102,390.48 = 45,515.76/x
  3. Step 3: Cross multiply
    74,192.88x = 102,390.48 × 45,515.76
  4. Step 4: Simplify right side
    74,192.88x = 4,660,380,513.96
  5. Step 5: Solve for x
    x = 4,660,380,513.96/74,192.88
  6. Step 6: Final answer
    x = 62,814.39

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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.