Home / 85,555.06-128,333.40-32,956.90

Finding the Fourth Proportional to 85,555.06, 128,333.40 and 32,956.90

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Solution

The fourth proportional to 85,555.06, 128,333.40 and 32,956.90 is: 49,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,555.06 : 128,333.40 = 32,956.90 : x
  2. Step 2: Convert to fraction form
    85,555.06/128,333.40 = 32,956.90/x
  3. Step 3: Cross multiply
    85,555.06x = 128,333.40 × 32,956.90
  4. Step 4: Simplify right side
    85,555.06x = 4,229,471,030.46
  5. Step 5: Solve for x
    x = 4,229,471,030.46/85,555.06
  6. Step 6: Final answer
    x = 49,435.66

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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.