Home / 85,554.56-128,353.68-35,618.08

Finding the Fourth Proportional to 85,554.56, 128,353.68 and 35,618.08

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Solution

The fourth proportional to 85,554.56, 128,353.68 and 35,618.08 is: 53,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,554.56 : 128,353.68 = 35,618.08 : x
  2. Step 2: Convert to fraction form
    85,554.56/128,353.68 = 35,618.08/x
  3. Step 3: Cross multiply
    85,554.56x = 128,353.68 × 35,618.08
  4. Step 4: Simplify right side
    85,554.56x = 4,571,711,642.53
  5. Step 5: Solve for x
    x = 4,571,711,642.53/85,554.56
  6. Step 6: Final answer
    x = 53,436.21

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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.