Home / 98,965.24-136,590.32-56,523.78

Finding the Fourth Proportional to 98,965.24, 136,590.32 and 56,523.78

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Solution

The fourth proportional to 98,965.24, 136,590.32 and 56,523.78 is: 78,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,965.24 : 136,590.32 = 56,523.78 : x
  2. Step 2: Convert to fraction form
    98,965.24/136,590.32 = 56,523.78/x
  3. Step 3: Cross multiply
    98,965.24x = 136,590.32 × 56,523.78
  4. Step 4: Simplify right side
    98,965.24x = 7,720,601,197.81
  5. Step 5: Solve for x
    x = 7,720,601,197.81/98,965.24
  6. Step 6: Final answer
    x = 78,013.26

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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.