Home / 99,040.16-136,675.60-54,328.48

Finding the Fourth Proportional to 99,040.16, 136,675.60 and 54,328.48

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Solution

The fourth proportional to 99,040.16, 136,675.60 and 54,328.48 is: 74,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,040.16 : 136,675.60 = 54,328.48 : x
  2. Step 2: Convert to fraction form
    99,040.16/136,675.60 = 54,328.48/x
  3. Step 3: Cross multiply
    99,040.16x = 136,675.60 × 54,328.48
  4. Step 4: Simplify right side
    99,040.16x = 7,425,377,601.09
  5. Step 5: Solve for x
    x = 7,425,377,601.09/99,040.16
  6. Step 6: Final answer
    x = 74,973.40

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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.