Home / 47,311.21-70,886.47-28,551.82

Finding the Fourth Proportional to 47,311.21, 70,886.47 and 28,551.82

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Solution

The fourth proportional to 47,311.21, 70,886.47 and 28,551.82 is: 42,779.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,311.21 : 70,886.47 = 28,551.82 : x
  2. Step 2: Convert to fraction form
    47,311.21/70,886.47 = 28,551.82/x
  3. Step 3: Cross multiply
    47,311.21x = 70,886.47 × 28,551.82
  4. Step 4: Simplify right side
    47,311.21x = 2,023,937,731.88
  5. Step 5: Solve for x
    x = 2,023,937,731.88/47,311.21
  6. Step 6: Final answer
    x = 42,779.24

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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.