Home / 98,901.84-136,469.64-56,454.60

Finding the Fourth Proportional to 98,901.84, 136,469.64 and 56,454.60

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Solution

The fourth proportional to 98,901.84, 136,469.64 and 56,454.60 is: 77,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,901.84 : 136,469.64 = 56,454.60 : x
  2. Step 2: Convert to fraction form
    98,901.84/136,469.64 = 56,454.60/x
  3. Step 3: Cross multiply
    98,901.84x = 136,469.64 × 56,454.60
  4. Step 4: Simplify right side
    98,901.84x = 7,704,338,938.34
  5. Step 5: Solve for x
    x = 7,704,338,938.34/98,901.84
  6. Step 6: Final answer
    x = 77,898.84

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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.