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Finding the Fourth Proportional to 65,041.65, 89,653.64 and 53,084.43

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Solution

The fourth proportional to 65,041.65, 89,653.64 and 53,084.43 is: 73,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,041.65 : 89,653.64 = 53,084.43 : x
  2. Step 2: Convert to fraction form
    65,041.65/89,653.64 = 53,084.43/x
  3. Step 3: Cross multiply
    65,041.65x = 89,653.64 × 53,084.43
  4. Step 4: Simplify right side
    65,041.65x = 4,759,212,111.40
  5. Step 5: Solve for x
    x = 4,759,212,111.40/65,041.65
  6. Step 6: Final answer
    x = 73,171.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.