Home / 85,984.55-129,026.03-33,387.20

Finding the Fourth Proportional to 85,984.55, 129,026.03 and 33,387.20

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Solution

The fourth proportional to 85,984.55, 129,026.03 and 33,387.20 is: 50,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,984.55 : 129,026.03 = 33,387.20 : x
  2. Step 2: Convert to fraction form
    85,984.55/129,026.03 = 33,387.20/x
  3. Step 3: Cross multiply
    85,984.55x = 129,026.03 × 33,387.20
  4. Step 4: Simplify right side
    85,984.55x = 4,307,817,056.75
  5. Step 5: Solve for x
    x = 4,307,817,056.75/85,984.55
  6. Step 6: Final answer
    x = 50,099.90

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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.