Home / 81,822.12-112,915.92-53,527.82

Finding the Fourth Proportional to 81,822.12, 112,915.92 and 53,527.82

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Solution

The fourth proportional to 81,822.12, 112,915.92 and 53,527.82 is: 73,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,822.12 : 112,915.92 = 53,527.82 : x
  2. Step 2: Convert to fraction form
    81,822.12/112,915.92 = 53,527.82/x
  3. Step 3: Cross multiply
    81,822.12x = 112,915.92 × 53,527.82
  4. Step 4: Simplify right side
    81,822.12x = 6,044,143,040.89
  5. Step 5: Solve for x
    x = 6,044,143,040.89/81,822.12
  6. Step 6: Final answer
    x = 73,869.30

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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.