Home / 99,000.56-136,608.30-56,561.82

Finding the Fourth Proportional to 99,000.56, 136,608.30 and 56,561.82

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Solution

The fourth proportional to 99,000.56, 136,608.30 and 56,561.82 is: 78,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,000.56 : 136,608.30 = 56,561.82 : x
  2. Step 2: Convert to fraction form
    99,000.56/136,608.30 = 56,561.82/x
  3. Step 3: Cross multiply
    99,000.56x = 136,608.30 × 56,561.82
  4. Step 4: Simplify right side
    99,000.56x = 7,726,814,075.11
  5. Step 5: Solve for x
    x = 7,726,814,075.11/99,000.56
  6. Step 6: Final answer
    x = 78,048.19

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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.