Home / 51,970.10-77,955.15-18,695.30

Finding the Fourth Proportional to 51,970.10, 77,955.15 and 18,695.30

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Solution

The fourth proportional to 51,970.10, 77,955.15 and 18,695.30 is: 28,042.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,970.10 : 77,955.15 = 18,695.30 : x
  2. Step 2: Convert to fraction form
    51,970.10/77,955.15 = 18,695.30/x
  3. Step 3: Cross multiply
    51,970.10x = 77,955.15 × 18,695.30
  4. Step 4: Simplify right side
    51,970.10x = 1,457,394,915.80
  5. Step 5: Solve for x
    x = 1,457,394,915.80/51,970.10
  6. Step 6: Final answer
    x = 28,042.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.