Home / 76,436.64-105,518.16-50,985.36

Finding the Fourth Proportional to 76,436.64, 105,518.16 and 50,985.36

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Solution

The fourth proportional to 76,436.64, 105,518.16 and 50,985.36 is: 70,383.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,436.64 : 105,518.16 = 50,985.36 : x
  2. Step 2: Convert to fraction form
    76,436.64/105,518.16 = 50,985.36/x
  3. Step 3: Cross multiply
    76,436.64x = 105,518.16 × 50,985.36
  4. Step 4: Simplify right side
    76,436.64x = 5,379,881,374.14
  5. Step 5: Solve for x
    x = 5,379,881,374.14/76,436.64
  6. Step 6: Final answer
    x = 70,383.54

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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.