Home / 99,051.40-136,690.13-53,729.27

Finding the Fourth Proportional to 99,051.40, 136,690.13 and 53,729.27

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Solution

The fourth proportional to 99,051.40, 136,690.13 and 53,729.27 is: 74,145.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,051.40 : 136,690.13 = 53,729.27 : x
  2. Step 2: Convert to fraction form
    99,051.40/136,690.13 = 53,729.27/x
  3. Step 3: Cross multiply
    99,051.40x = 136,690.13 × 53,729.27
  4. Step 4: Simplify right side
    99,051.40x = 7,344,260,901.11
  5. Step 5: Solve for x
    x = 7,344,260,901.11/99,051.40
  6. Step 6: Final answer
    x = 74,145.96

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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.