Home / 76,343.10-105,341.97-43,635.15

Finding the Fourth Proportional to 76,343.10, 105,341.97 and 43,635.15

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Solution

The fourth proportional to 76,343.10, 105,341.97 and 43,635.15 is: 60,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,343.10 : 105,341.97 = 43,635.15 : x
  2. Step 2: Convert to fraction form
    76,343.10/105,341.97 = 43,635.15/x
  3. Step 3: Cross multiply
    76,343.10x = 105,341.97 × 43,635.15
  4. Step 4: Simplify right side
    76,343.10x = 4,596,612,662.25
  5. Step 5: Solve for x
    x = 4,596,612,662.25/76,343.10
  6. Step 6: Final answer
    x = 60,209.93

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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.