Home / 74,151.77-102,329.75-40,160.66

Finding the Fourth Proportional to 74,151.77, 102,329.75 and 40,160.66

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Solution

The fourth proportional to 74,151.77, 102,329.75 and 40,160.66 is: 55,421.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,151.77 : 102,329.75 = 40,160.66 : x
  2. Step 2: Convert to fraction form
    74,151.77/102,329.75 = 40,160.66/x
  3. Step 3: Cross multiply
    74,151.77x = 102,329.75 × 40,160.66
  4. Step 4: Simplify right side
    74,151.77x = 4,109,630,653.86
  5. Step 5: Solve for x
    x = 4,109,630,653.86/74,151.77
  6. Step 6: Final answer
    x = 55,421.88

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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.