Home / 76,011.73-104,895.47-42,021.09

Finding the Fourth Proportional to 76,011.73, 104,895.47 and 42,021.09

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Solution

The fourth proportional to 76,011.73, 104,895.47 and 42,021.09 is: 57,988.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,011.73 : 104,895.47 = 42,021.09 : x
  2. Step 2: Convert to fraction form
    76,011.73/104,895.47 = 42,021.09/x
  3. Step 3: Cross multiply
    76,011.73x = 104,895.47 × 42,021.09
  4. Step 4: Simplify right side
    76,011.73x = 4,407,822,090.52
  5. Step 5: Solve for x
    x = 4,407,822,090.52/76,011.73
  6. Step 6: Final answer
    x = 57,988.71

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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.