Home / 64,994.18-89,692.60-38,137.15

Finding the Fourth Proportional to 64,994.18, 89,692.60 and 38,137.15

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Solution

The fourth proportional to 64,994.18, 89,692.60 and 38,137.15 is: 52,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,994.18 : 89,692.60 = 38,137.15 : x
  2. Step 2: Convert to fraction form
    64,994.18/89,692.60 = 38,137.15/x
  3. Step 3: Cross multiply
    64,994.18x = 89,692.60 × 38,137.15
  4. Step 4: Simplify right side
    64,994.18x = 3,420,620,140.09
  5. Step 5: Solve for x
    x = 3,420,620,140.09/64,994.18
  6. Step 6: Final answer
    x = 52,629.64

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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.