Home / 51,515.10-77,272.65-18,234.90

Finding the Fourth Proportional to 51,515.10, 77,272.65 and 18,234.90

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Solution

The fourth proportional to 51,515.10, 77,272.65 and 18,234.90 is: 27,352.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.10 : 77,272.65 = 18,234.90 : x
  2. Step 2: Convert to fraction form
    51,515.10/77,272.65 = 18,234.90/x
  3. Step 3: Cross multiply
    51,515.10x = 77,272.65 × 18,234.90
  4. Step 4: Simplify right side
    51,515.10x = 1,409,059,045.49
  5. Step 5: Solve for x
    x = 1,409,059,045.49/51,515.10
  6. Step 6: Final answer
    x = 27,352.35

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1.5x scale

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.