Home / 99,040.58-136,685.34-56,590.88

Finding the Fourth Proportional to 99,040.58, 136,685.34 and 56,590.88

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Solution

The fourth proportional to 99,040.58, 136,685.34 and 56,590.88 is: 78,100.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,040.58 : 136,685.34 = 56,590.88 : x
  2. Step 2: Convert to fraction form
    99,040.58/136,685.34 = 56,590.88/x
  3. Step 3: Cross multiply
    99,040.58x = 136,685.34 × 56,590.88
  4. Step 4: Simplify right side
    99,040.58x = 7,735,143,673.70
  5. Step 5: Solve for x
    x = 7,735,143,673.70/99,040.58
  6. Step 6: Final answer
    x = 78,100.75

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1.5x scale

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.