Home / 99,030.75-136,662.66-56,589.18

Finding the Fourth Proportional to 99,030.75, 136,662.66 and 56,589.18

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Solution

The fourth proportional to 99,030.75, 136,662.66 and 56,589.18 is: 78,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,030.75 : 136,662.66 = 56,589.18 : x
  2. Step 2: Convert to fraction form
    99,030.75/136,662.66 = 56,589.18/x
  3. Step 3: Cross multiply
    99,030.75x = 136,662.66 × 56,589.18
  4. Step 4: Simplify right side
    99,030.75x = 7,733,627,866.02
  5. Step 5: Solve for x
    x = 7,733,627,866.02/99,030.75
  6. Step 6: Final answer
    x = 78,093.20

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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.