Home / 74,216.92-102,419.40-40,225.72

Finding the Fourth Proportional to 74,216.92, 102,419.40 and 40,225.72

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Solution

The fourth proportional to 74,216.92, 102,419.40 and 40,225.72 is: 55,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,216.92 : 102,419.40 = 40,225.72 : x
  2. Step 2: Convert to fraction form
    74,216.92/102,419.40 = 40,225.72/x
  3. Step 3: Cross multiply
    74,216.92x = 102,419.40 × 40,225.72
  4. Step 4: Simplify right side
    74,216.92x = 4,119,894,106.97
  5. Step 5: Solve for x
    x = 4,119,894,106.97/74,216.92
  6. Step 6: Final answer
    x = 55,511.52

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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.