Home / 49,779.12-74,624.94-18,636.24

Finding the Fourth Proportional to 49,779.12, 74,624.94 and 18,636.24

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Solution

The fourth proportional to 49,779.12, 74,624.94 and 18,636.24 is: 27,937.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,779.12 : 74,624.94 = 18,636.24 : x
  2. Step 2: Convert to fraction form
    49,779.12/74,624.94 = 18,636.24/x
  3. Step 3: Cross multiply
    49,779.12x = 74,624.94 × 18,636.24
  4. Step 4: Simplify right side
    49,779.12x = 1,390,728,291.83
  5. Step 5: Solve for x
    x = 1,390,728,291.83/49,779.12
  6. Step 6: Final answer
    x = 27,937.98

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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.