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Finding the Fourth Proportional to 57,303.40, 85,955.10 and 36,308.20

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Solution

The fourth proportional to 57,303.40, 85,955.10 and 36,308.20 is: 54,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,303.40 : 85,955.10 = 36,308.20 : x
  2. Step 2: Convert to fraction form
    57,303.40/85,955.10 = 36,308.20/x
  3. Step 3: Cross multiply
    57,303.40x = 85,955.10 × 36,308.20
  4. Step 4: Simplify right side
    57,303.40x = 3,120,874,961.82
  5. Step 5: Solve for x
    x = 3,120,874,961.82/57,303.40
  6. Step 6: Final answer
    x = 54,462.30

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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.