Home / 74,771.04-103,182.73-40,779.79

Finding the Fourth Proportional to 74,771.04, 103,182.73 and 40,779.79

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Solution

The fourth proportional to 74,771.04, 103,182.73 and 40,779.79 is: 56,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,771.04 : 103,182.73 = 40,779.79 : x
  2. Step 2: Convert to fraction form
    74,771.04/103,182.73 = 40,779.79/x
  3. Step 3: Cross multiply
    74,771.04x = 103,182.73 × 40,779.79
  4. Step 4: Simplify right side
    74,771.04x = 4,207,770,061.03
  5. Step 5: Solve for x
    x = 4,207,770,061.03/74,771.04
  6. Step 6: Final answer
    x = 56,275.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.