Home / 51,421.08-77,043.60-28,063.92

Finding the Fourth Proportional to 51,421.08, 77,043.60 and 28,063.92

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Solution

The fourth proportional to 51,421.08, 77,043.60 and 28,063.92 is: 42,047.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,421.08 : 77,043.60 = 28,063.92 : x
  2. Step 2: Convert to fraction form
    51,421.08/77,043.60 = 28,063.92/x
  3. Step 3: Cross multiply
    51,421.08x = 77,043.60 × 28,063.92
  4. Step 4: Simplify right side
    51,421.08x = 2,162,145,426.91
  5. Step 5: Solve for x
    x = 2,162,145,426.91/51,421.08
  6. Step 6: Final answer
    x = 42,047.84

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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.