Home / 81,166.21-112,009.20-45,356.23

Finding the Fourth Proportional to 81,166.21, 112,009.20 and 45,356.23

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Solution

The fourth proportional to 81,166.21, 112,009.20 and 45,356.23 is: 62,591.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,166.21 : 112,009.20 = 45,356.23 : x
  2. Step 2: Convert to fraction form
    81,166.21/112,009.20 = 45,356.23/x
  3. Step 3: Cross multiply
    81,166.21x = 112,009.20 × 45,356.23
  4. Step 4: Simplify right side
    81,166.21x = 5,080,314,692.22
  5. Step 5: Solve for x
    x = 5,080,314,692.22/81,166.21
  6. Step 6: Final answer
    x = 62,591.49

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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.