Home / 81,219.98-121,768.23-56,193.50

Finding the Fourth Proportional to 81,219.98, 121,768.23 and 56,193.50

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Solution

The fourth proportional to 81,219.98, 121,768.23 and 56,193.50 is: 84,247.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,219.98 : 121,768.23 = 56,193.50 : x
  2. Step 2: Convert to fraction form
    81,219.98/121,768.23 = 56,193.50/x
  3. Step 3: Cross multiply
    81,219.98x = 121,768.23 × 56,193.50
  4. Step 4: Simplify right side
    81,219.98x = 6,842,583,032.51
  5. Step 5: Solve for x
    x = 6,842,583,032.51/81,219.98
  6. Step 6: Final answer
    x = 84,247.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.