Home / 98,929.82-136,525.68-56,492.30

Finding the Fourth Proportional to 98,929.82, 136,525.68 and 56,492.30

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Solution

The fourth proportional to 98,929.82, 136,525.68 and 56,492.30 is: 77,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,929.82 : 136,525.68 = 56,492.30 : x
  2. Step 2: Convert to fraction form
    98,929.82/136,525.68 = 56,492.30/x
  3. Step 3: Cross multiply
    98,929.82x = 136,525.68 × 56,492.30
  4. Step 4: Simplify right side
    98,929.82x = 7,712,648,989.64
  5. Step 5: Solve for x
    x = 7,712,648,989.64/98,929.82
  6. Step 6: Final answer
    x = 77,960.81

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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.