Home / 56,903.40-85,355.10-39,188.70

Finding the Fourth Proportional to 56,903.40, 85,355.10 and 39,188.70

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Solution

The fourth proportional to 56,903.40, 85,355.10 and 39,188.70 is: 58,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,903.40 : 85,355.10 = 39,188.70 : x
  2. Step 2: Convert to fraction form
    56,903.40/85,355.10 = 39,188.70/x
  3. Step 3: Cross multiply
    56,903.40x = 85,355.10 × 39,188.70
  4. Step 4: Simplify right side
    56,903.40x = 3,344,955,407.37
  5. Step 5: Solve for x
    x = 3,344,955,407.37/56,903.40
  6. Step 6: Final answer
    x = 58,783.05

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Similar ratio
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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.