Home / 98,929.74-136,529.72-55,894.30

Finding the Fourth Proportional to 98,929.74, 136,529.72 and 55,894.30

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Solution

The fourth proportional to 98,929.74, 136,529.72 and 55,894.30 is: 77,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,929.74 : 136,529.72 = 55,894.30 : x
  2. Step 2: Convert to fraction form
    98,929.74/136,529.72 = 55,894.30/x
  3. Step 3: Cross multiply
    98,929.74x = 136,529.72 × 55,894.30
  4. Step 4: Simplify right side
    98,929.74x = 7,631,233,128.60
  5. Step 5: Solve for x
    x = 7,631,233,128.60/98,929.74
  6. Step 6: Final answer
    x = 77,137.91

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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.