Home / 74,774.90-103,179.93-42,945.85

Finding the Fourth Proportional to 74,774.90, 103,179.93 and 42,945.85

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Solution

The fourth proportional to 74,774.90, 103,179.93 and 42,945.85 is: 59,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,774.90 : 103,179.93 = 42,945.85 : x
  2. Step 2: Convert to fraction form
    74,774.90/103,179.93 = 42,945.85/x
  3. Step 3: Cross multiply
    74,774.90x = 103,179.93 × 42,945.85
  4. Step 4: Simplify right side
    74,774.90x = 4,431,149,184.33
  5. Step 5: Solve for x
    x = 4,431,149,184.33/74,774.90
  6. Step 6: Final answer
    x = 59,259.85

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1.5x scale

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.