Home / 98,960.40-136,575.12-56,525.28

Finding the Fourth Proportional to 98,960.40, 136,575.12 and 56,525.28

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Solution

The fourth proportional to 98,960.40, 136,575.12 and 56,525.28 is: 78,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,960.40 : 136,575.12 = 56,525.28 : x
  2. Step 2: Convert to fraction form
    98,960.40/136,575.12 = 56,525.28/x
  3. Step 3: Cross multiply
    98,960.40x = 136,575.12 × 56,525.28
  4. Step 4: Simplify right side
    98,960.40x = 7,719,946,899.03
  5. Step 5: Solve for x
    x = 7,719,946,899.03/98,960.40
  6. Step 6: Final answer
    x = 78,010.47

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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.