Home / 76,168.98-105,123.08-45,971.37

Finding the Fourth Proportional to 76,168.98, 105,123.08 and 45,971.37

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Solution

The fourth proportional to 76,168.98, 105,123.08 and 45,971.37 is: 63,446.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,168.98 : 105,123.08 = 45,971.37 : x
  2. Step 2: Convert to fraction form
    76,168.98/105,123.08 = 45,971.37/x
  3. Step 3: Cross multiply
    76,168.98x = 105,123.08 × 45,971.37
  4. Step 4: Simplify right side
    76,168.98x = 4,832,652,121.15
  5. Step 5: Solve for x
    x = 4,832,652,121.15/76,168.98
  6. Step 6: Final answer
    x = 63,446.46

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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.