Home / 75,678.49-104,436.35-43,865.83

Finding the Fourth Proportional to 75,678.49, 104,436.35 and 43,865.83

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Solution

The fourth proportional to 75,678.49, 104,436.35 and 43,865.83 is: 60,534.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,678.49 : 104,436.35 = 43,865.83 : x
  2. Step 2: Convert to fraction form
    75,678.49/104,436.35 = 43,865.83/x
  3. Step 3: Cross multiply
    75,678.49x = 104,436.35 × 43,865.83
  4. Step 4: Simplify right side
    75,678.49x = 4,581,186,955.59
  5. Step 5: Solve for x
    x = 4,581,186,955.59/75,678.49
  6. Step 6: Final answer
    x = 60,534.86

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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.