Home / 85,577.77-128,279.17-29,401.03

Finding the Fourth Proportional to 85,577.77, 128,279.17 and 29,401.03

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Solution

The fourth proportional to 85,577.77, 128,279.17 and 29,401.03 is: 44,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,577.77 : 128,279.17 = 29,401.03 : x
  2. Step 2: Convert to fraction form
    85,577.77/128,279.17 = 29,401.03/x
  3. Step 3: Cross multiply
    85,577.77x = 128,279.17 × 29,401.03
  4. Step 4: Simplify right side
    85,577.77x = 3,771,539,725.55
  5. Step 5: Solve for x
    x = 3,771,539,725.55/85,577.77
  6. Step 6: Final answer
    x = 44,071.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.