Home / 99,355.64-137,111.70-54,034.06

Finding the Fourth Proportional to 99,355.64, 137,111.70 and 54,034.06

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Solution

The fourth proportional to 99,355.64, 137,111.70 and 54,034.06 is: 74,567.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,355.64 : 137,111.70 = 54,034.06 : x
  2. Step 2: Convert to fraction form
    99,355.64/137,111.70 = 54,034.06/x
  3. Step 3: Cross multiply
    99,355.64x = 137,111.70 × 54,034.06
  4. Step 4: Simplify right side
    99,355.64x = 7,408,701,824.50
  5. Step 5: Solve for x
    x = 7,408,701,824.50/99,355.64
  6. Step 6: Final answer
    x = 74,567.50

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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.