Home / 53,555.49-80,316.63-43,000.65

Finding the Fourth Proportional to 53,555.49, 80,316.63 and 43,000.65

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Solution

The fourth proportional to 53,555.49, 80,316.63 and 43,000.65 is: 64,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,555.49 : 80,316.63 = 43,000.65 : x
  2. Step 2: Convert to fraction form
    53,555.49/80,316.63 = 43,000.65/x
  3. Step 3: Cross multiply
    53,555.49x = 80,316.63 × 43,000.65
  4. Step 4: Simplify right side
    53,555.49x = 3,453,667,295.81
  5. Step 5: Solve for x
    x = 3,453,667,295.81/53,555.49
  6. Step 6: Final answer
    x = 64,487.64

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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.