Home / 81,636.03-112,649.07-45,829.98

Finding the Fourth Proportional to 81,636.03, 112,649.07 and 45,829.98

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Solution

The fourth proportional to 81,636.03, 112,649.07 and 45,829.98 is: 63,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,636.03 : 112,649.07 = 45,829.98 : x
  2. Step 2: Convert to fraction form
    81,636.03/112,649.07 = 45,829.98/x
  3. Step 3: Cross multiply
    81,636.03x = 112,649.07 × 45,829.98
  4. Step 4: Simplify right side
    81,636.03x = 5,162,704,625.12
  5. Step 5: Solve for x
    x = 5,162,704,625.12/81,636.03
  6. Step 6: Final answer
    x = 63,240.52

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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.