Home / 74,407.52-102,683.62-40,416.07

Finding the Fourth Proportional to 74,407.52, 102,683.62 and 40,416.07

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Solution

The fourth proportional to 74,407.52, 102,683.62 and 40,416.07 is: 55,774.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,407.52 : 102,683.62 = 40,416.07 : x
  2. Step 2: Convert to fraction form
    74,407.52/102,683.62 = 40,416.07/x
  3. Step 3: Cross multiply
    74,407.52x = 102,683.62 × 40,416.07
  4. Step 4: Simplify right side
    74,407.52x = 4,150,068,132.78
  5. Step 5: Solve for x
    x = 4,150,068,132.78/74,407.52
  6. Step 6: Final answer
    x = 55,774.85

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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.