Home / 272,872.04-409,363.42-85,840.04

Finding the Fourth Proportional to 272,872.04, 409,363.42 and 85,840.04

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Solution

The fourth proportional to 272,872.04, 409,363.42 and 85,840.04 is: 128,777.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,872.04 : 409,363.42 = 85,840.04 : x
  2. Step 2: Convert to fraction form
    272,872.04/409,363.42 = 85,840.04/x
  3. Step 3: Cross multiply
    272,872.04x = 409,363.42 × 85,840.04
  4. Step 4: Simplify right side
    272,872.04x = 35,139,772,347.34
  5. Step 5: Solve for x
    x = 35,139,772,347.34/272,872.04
  6. Step 6: Final answer
    x = 128,777.48

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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.