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Finding the Fourth Proportional to 85,798.98, 128,693.34 and 50,960.34

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Solution

The fourth proportional to 85,798.98, 128,693.34 and 50,960.34 is: 76,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,798.98 : 128,693.34 = 50,960.34 : x
  2. Step 2: Convert to fraction form
    85,798.98/128,693.34 = 50,960.34/x
  3. Step 3: Cross multiply
    85,798.98x = 128,693.34 × 50,960.34
  4. Step 4: Simplify right side
    85,798.98x = 6,558,256,362.14
  5. Step 5: Solve for x
    x = 6,558,256,362.14/85,798.98
  6. Step 6: Final answer
    x = 76,437.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.