Home / 51,779.34-77,649.84-18,490.50

Finding the Fourth Proportional to 51,779.34, 77,649.84 and 18,490.50

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Solution

The fourth proportional to 51,779.34, 77,649.84 and 18,490.50 is: 27,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,779.34 : 77,649.84 = 18,490.50 : x
  2. Step 2: Convert to fraction form
    51,779.34/77,649.84 = 18,490.50/x
  3. Step 3: Cross multiply
    51,779.34x = 77,649.84 × 18,490.50
  4. Step 4: Simplify right side
    51,779.34x = 1,435,784,366.52
  5. Step 5: Solve for x
    x = 1,435,784,366.52/51,779.34
  6. Step 6: Final answer
    x = 27,728.90

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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.