Home / 72,769.19-100,384.73-42,534.75

Finding the Fourth Proportional to 72,769.19, 100,384.73 and 42,534.75

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Solution

The fourth proportional to 72,769.19, 100,384.73 and 42,534.75 is: 58,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,769.19 : 100,384.73 = 42,534.75 : x
  2. Step 2: Convert to fraction form
    72,769.19/100,384.73 = 42,534.75/x
  3. Step 3: Cross multiply
    72,769.19x = 100,384.73 × 42,534.75
  4. Step 4: Simplify right side
    72,769.19x = 4,269,839,181.69
  5. Step 5: Solve for x
    x = 4,269,839,181.69/72,769.19
  6. Step 6: Final answer
    x = 58,676.47

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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.