Home / 65,555.13-90,808.69-64,226.53

Finding the Fourth Proportional to 65,555.13, 90,808.69 and 64,226.53

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Solution

The fourth proportional to 65,555.13, 90,808.69 and 64,226.53 is: 88,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,555.13 : 90,808.69 = 64,226.53 : x
  2. Step 2: Convert to fraction form
    65,555.13/90,808.69 = 64,226.53/x
  3. Step 3: Cross multiply
    65,555.13x = 90,808.69 × 64,226.53
  4. Step 4: Simplify right side
    65,555.13x = 5,832,327,052.55
  5. Step 5: Solve for x
    x = 5,832,327,052.55/65,555.13
  6. Step 6: Final answer
    x = 88,968.28

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.