Home / 71,966.52-99,313.61-40,135.46

Finding the Fourth Proportional to 71,966.52, 99,313.61 and 40,135.46

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Solution

The fourth proportional to 71,966.52, 99,313.61 and 40,135.46 is: 55,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,966.52 : 99,313.61 = 40,135.46 : x
  2. Step 2: Convert to fraction form
    71,966.52/99,313.61 = 40,135.46/x
  3. Step 3: Cross multiply
    71,966.52x = 99,313.61 × 40,135.46
  4. Step 4: Simplify right side
    71,966.52x = 3,985,996,724.37
  5. Step 5: Solve for x
    x = 3,985,996,724.37/71,966.52
  6. Step 6: Final answer
    x = 55,386.82

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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.