Home / 55,619.10-83,428.65-53,286.30

Finding the Fourth Proportional to 55,619.10, 83,428.65 and 53,286.30

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Solution

The fourth proportional to 55,619.10, 83,428.65 and 53,286.30 is: 79,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,619.10 : 83,428.65 = 53,286.30 : x
  2. Step 2: Convert to fraction form
    55,619.10/83,428.65 = 53,286.30/x
  3. Step 3: Cross multiply
    55,619.10x = 83,428.65 × 53,286.30
  4. Step 4: Simplify right side
    55,619.10x = 4,445,604,072.50
  5. Step 5: Solve for x
    x = 4,445,604,072.50/55,619.10
  6. Step 6: Final answer
    x = 79,929.45

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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.