Home / 85,459.16-128,204.94-35,512.14

Finding the Fourth Proportional to 85,459.16, 128,204.94 and 35,512.14

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Solution

The fourth proportional to 85,459.16, 128,204.94 and 35,512.14 is: 53,274.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,459.16 : 128,204.94 = 35,512.14 : x
  2. Step 2: Convert to fraction form
    85,459.16/128,204.94 = 35,512.14/x
  3. Step 3: Cross multiply
    85,459.16x = 128,204.94 × 35,512.14
  4. Step 4: Simplify right side
    85,459.16x = 4,552,831,777.97
  5. Step 5: Solve for x
    x = 4,552,831,777.97/85,459.16
  6. Step 6: Final answer
    x = 53,274.94

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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.