Home / 84,971.34-117,285.10-52,715.79

Finding the Fourth Proportional to 84,971.34, 117,285.10 and 52,715.79

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Solution

The fourth proportional to 84,971.34, 117,285.10 and 52,715.79 is: 72,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,971.34 : 117,285.10 = 52,715.79 : x
  2. Step 2: Convert to fraction form
    84,971.34/117,285.10 = 52,715.79/x
  3. Step 3: Cross multiply
    84,971.34x = 117,285.10 × 52,715.79
  4. Step 4: Simplify right side
    84,971.34x = 6,182,776,701.73
  5. Step 5: Solve for x
    x = 6,182,776,701.73/84,971.34
  6. Step 6: Final answer
    x = 72,763.08

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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.