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Finding the Fourth Proportional to 99,636.66, 137,494.53 and 54,313.65

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Solution

The fourth proportional to 99,636.66, 137,494.53 and 54,313.65 is: 74,950.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,636.66 : 137,494.53 = 54,313.65 : x
  2. Step 2: Convert to fraction form
    99,636.66/137,494.53 = 54,313.65/x
  3. Step 3: Cross multiply
    99,636.66x = 137,494.53 × 54,313.65
  4. Step 4: Simplify right side
    99,636.66x = 7,467,829,779.33
  5. Step 5: Solve for x
    x = 7,467,829,779.33/99,636.66
  6. Step 6: Final answer
    x = 74,950.62

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1.5x scale

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.