Home / 99,595.42-137,438.16-55,986.64

Finding the Fourth Proportional to 99,595.42, 137,438.16 and 55,986.64

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Solution

The fourth proportional to 99,595.42, 137,438.16 and 55,986.64 is: 77,259.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,595.42 : 137,438.16 = 55,986.64 : x
  2. Step 2: Convert to fraction form
    99,595.42/137,438.16 = 55,986.64/x
  3. Step 3: Cross multiply
    99,595.42x = 137,438.16 × 55,986.64
  4. Step 4: Simplify right side
    99,595.42x = 7,694,700,786.18
  5. Step 5: Solve for x
    x = 7,694,700,786.18/99,595.42
  6. Step 6: Final answer
    x = 77,259.58

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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.