Home / 99,387.53-137,158.40-56,954.27

Finding the Fourth Proportional to 99,387.53, 137,158.40 and 56,954.27

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Solution

The fourth proportional to 99,387.53, 137,158.40 and 56,954.27 is: 78,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,387.53 : 137,158.40 = 56,954.27 : x
  2. Step 2: Convert to fraction form
    99,387.53/137,158.40 = 56,954.27/x
  3. Step 3: Cross multiply
    99,387.53x = 137,158.40 × 56,954.27
  4. Step 4: Simplify right side
    99,387.53x = 7,811,756,546.37
  5. Step 5: Solve for x
    x = 7,811,756,546.37/99,387.53
  6. Step 6: Final answer
    x = 78,598.96

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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.