Home / 76,945.48-106,063.46-56,737.64

Finding the Fourth Proportional to 76,945.48, 106,063.46 and 56,737.64

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Solution

The fourth proportional to 76,945.48, 106,063.46 and 56,737.64 is: 78,208.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,945.48 : 106,063.46 = 56,737.64 : x
  2. Step 2: Convert to fraction form
    76,945.48/106,063.46 = 56,737.64/x
  3. Step 3: Cross multiply
    76,945.48x = 106,063.46 × 56,737.64
  4. Step 4: Simplify right side
    76,945.48x = 6,017,790,410.63
  5. Step 5: Solve for x
    x = 6,017,790,410.63/76,945.48
  6. Step 6: Final answer
    x = 78,208.50

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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.