Home / 84,971.84-117,285.79-52,716.29

Finding the Fourth Proportional to 84,971.84, 117,285.79 and 52,716.29

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Solution

The fourth proportional to 84,971.84, 117,285.79 and 52,716.29 is: 72,763.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,971.84 : 117,285.79 = 52,716.29 : x
  2. Step 2: Convert to fraction form
    84,971.84/117,285.79 = 52,716.29/x
  3. Step 3: Cross multiply
    84,971.84x = 117,285.79 × 52,716.29
  4. Step 4: Simplify right side
    84,971.84x = 6,182,871,718.52
  5. Step 5: Solve for x
    x = 6,182,871,718.52/84,971.84
  6. Step 6: Final answer
    x = 72,763.77

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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.