Home / 92,949.42-128,281.14-55,223.70

Finding the Fourth Proportional to 92,949.42, 128,281.14 and 55,223.70

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Solution

The fourth proportional to 92,949.42, 128,281.14 and 55,223.70 is: 76,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,949.42 : 128,281.14 = 55,223.70 : x
  2. Step 2: Convert to fraction form
    92,949.42/128,281.14 = 55,223.70/x
  3. Step 3: Cross multiply
    92,949.42x = 128,281.14 × 55,223.70
  4. Step 4: Simplify right side
    92,949.42x = 7,084,159,191.02
  5. Step 5: Solve for x
    x = 7,084,159,191.02/92,949.42
  6. Step 6: Final answer
    x = 76,215.21

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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.