Home / 99,074.04-136,731.78-56,624.48

Finding the Fourth Proportional to 99,074.04, 136,731.78 and 56,624.48

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Solution

The fourth proportional to 99,074.04, 136,731.78 and 56,624.48 is: 78,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,074.04 : 136,731.78 = 56,624.48 : x
  2. Step 2: Convert to fraction form
    99,074.04/136,731.78 = 56,624.48/x
  3. Step 3: Cross multiply
    99,074.04x = 136,731.78 × 56,624.48
  4. Step 4: Simplify right side
    99,074.04x = 7,742,365,941.97
  5. Step 5: Solve for x
    x = 7,742,365,941.97/99,074.04
  6. Step 6: Final answer
    x = 78,147.27

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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.