Home / 79,356.21-109,511.51-45,365.45

Finding the Fourth Proportional to 79,356.21, 109,511.51 and 45,365.45

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Solution

The fourth proportional to 79,356.21, 109,511.51 and 45,365.45 is: 62,604.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,356.21 : 109,511.51 = 45,365.45 : x
  2. Step 2: Convert to fraction form
    79,356.21/109,511.51 = 45,365.45/x
  3. Step 3: Cross multiply
    79,356.21x = 109,511.51 × 45,365.45
  4. Step 4: Simplify right side
    79,356.21x = 4,968,038,383.77
  5. Step 5: Solve for x
    x = 4,968,038,383.77/79,356.21
  6. Step 6: Final answer
    x = 62,604.28

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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.