Home / 56,901.40-85,352.10-39,186.70

Finding the Fourth Proportional to 56,901.40, 85,352.10 and 39,186.70

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Solution

The fourth proportional to 56,901.40, 85,352.10 and 39,186.70 is: 58,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,901.40 : 85,352.10 = 39,186.70 : x
  2. Step 2: Convert to fraction form
    56,901.40/85,352.10 = 39,186.70/x
  3. Step 3: Cross multiply
    56,901.40x = 85,352.10 × 39,186.70
  4. Step 4: Simplify right side
    56,901.40x = 3,344,667,137.07
  5. Step 5: Solve for x
    x = 3,344,667,137.07/56,901.40
  6. Step 6: Final answer
    x = 58,780.05

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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.