Home / 64,870.20-97,305.30-55,028.70

Finding the Fourth Proportional to 64,870.20, 97,305.30 and 55,028.70

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Solution

The fourth proportional to 64,870.20, 97,305.30 and 55,028.70 is: 82,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,870.20 : 97,305.30 = 55,028.70 : x
  2. Step 2: Convert to fraction form
    64,870.20/97,305.30 = 55,028.70/x
  3. Step 3: Cross multiply
    64,870.20x = 97,305.30 × 55,028.70
  4. Step 4: Simplify right side
    64,870.20x = 5,354,584,162.11
  5. Step 5: Solve for x
    x = 5,354,584,162.11/64,870.20
  6. Step 6: Final answer
    x = 82,543.05

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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.