Home / 74,582.04-102,921.28-40,591.20

Finding the Fourth Proportional to 74,582.04, 102,921.28 and 40,591.20

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Solution

The fourth proportional to 74,582.04, 102,921.28 and 40,591.20 is: 56,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,582.04 : 102,921.28 = 40,591.20 : x
  2. Step 2: Convert to fraction form
    74,582.04/102,921.28 = 40,591.20/x
  3. Step 3: Cross multiply
    74,582.04x = 102,921.28 × 40,591.20
  4. Step 4: Simplify right side
    74,582.04x = 4,177,698,260.74
  5. Step 5: Solve for x
    x = 4,177,698,260.74/74,582.04
  6. Step 6: Final answer
    x = 56,014.80

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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.