Home / 76,627.64-105,743.49-42,169.16

Finding the Fourth Proportional to 76,627.64, 105,743.49 and 42,169.16

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Solution

The fourth proportional to 76,627.64, 105,743.49 and 42,169.16 is: 58,191.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,627.64 : 105,743.49 = 42,169.16 : x
  2. Step 2: Convert to fraction form
    76,627.64/105,743.49 = 42,169.16/x
  3. Step 3: Cross multiply
    76,627.64x = 105,743.49 × 42,169.16
  4. Step 4: Simplify right side
    76,627.64x = 4,459,114,571.26
  5. Step 5: Solve for x
    x = 4,459,114,571.26/76,627.64
  6. Step 6: Final answer
    x = 58,191.98

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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.