Home / 74,149.88-102,326.85-42,318.09

Finding the Fourth Proportional to 74,149.88, 102,326.85 and 42,318.09

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Solution

The fourth proportional to 74,149.88, 102,326.85 and 42,318.09 is: 58,398.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,149.88 : 102,326.85 = 42,318.09 : x
  2. Step 2: Convert to fraction form
    74,149.88/102,326.85 = 42,318.09/x
  3. Step 3: Cross multiply
    74,149.88x = 102,326.85 × 42,318.09
  4. Step 4: Simplify right side
    74,149.88x = 4,330,276,847.72
  5. Step 5: Solve for x
    x = 4,330,276,847.72/74,149.88
  6. Step 6: Final answer
    x = 58,398.98

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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.