Home / 76,336.16-105,109.26-66,246.80

Finding the Fourth Proportional to 76,336.16, 105,109.26 and 66,246.80

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Solution

The fourth proportional to 76,336.16, 105,109.26 and 66,246.80 is: 91,216.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,336.16 : 105,109.26 = 66,246.80 : x
  2. Step 2: Convert to fraction form
    76,336.16/105,109.26 = 66,246.80/x
  3. Step 3: Cross multiply
    76,336.16x = 105,109.26 × 66,246.80
  4. Step 4: Simplify right side
    76,336.16x = 6,963,152,125.37
  5. Step 5: Solve for x
    x = 6,963,152,125.37/76,336.16
  6. Step 6: Final answer
    x = 91,216.96

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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.