Home / 89,368.68-123,370.80-51,635.64

Finding the Fourth Proportional to 89,368.68, 123,370.80 and 51,635.64

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Solution

The fourth proportional to 89,368.68, 123,370.80 and 51,635.64 is: 71,281.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,368.68 : 123,370.80 = 51,635.64 : x
  2. Step 2: Convert to fraction form
    89,368.68/123,370.80 = 51,635.64/x
  3. Step 3: Cross multiply
    89,368.68x = 123,370.80 × 51,635.64
  4. Step 4: Simplify right side
    89,368.68x = 6,370,330,215.31
  5. Step 5: Solve for x
    x = 6,370,330,215.31/89,368.68
  6. Step 6: Final answer
    x = 71,281.46

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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.