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Finding the Fourth Proportional to 46,765.40, 70,148.40 and 18,687.82

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Solution

The fourth proportional to 46,765.40, 70,148.40 and 18,687.82 is: 28,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,765.40 : 70,148.40 = 18,687.82 : x
  2. Step 2: Convert to fraction form
    46,765.40/70,148.40 = 18,687.82/x
  3. Step 3: Cross multiply
    46,765.40x = 70,148.40 × 18,687.82
  4. Step 4: Simplify right side
    46,765.40x = 1,310,920,672.49
  5. Step 5: Solve for x
    x = 1,310,920,672.49/46,765.40
  6. Step 6: Final answer
    x = 28,031.85

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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.