Home / 56,909.60-85,364.40-30,665.60

Finding the Fourth Proportional to 56,909.60, 85,364.40 and 30,665.60

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Solution

The fourth proportional to 56,909.60, 85,364.40 and 30,665.60 is: 45,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,909.60 : 85,364.40 = 30,665.60 : x
  2. Step 2: Convert to fraction form
    56,909.60/85,364.40 = 30,665.60/x
  3. Step 3: Cross multiply
    56,909.60x = 85,364.40 × 30,665.60
  4. Step 4: Simplify right side
    56,909.60x = 2,617,750,544.64
  5. Step 5: Solve for x
    x = 2,617,750,544.64/56,909.60
  6. Step 6: Final answer
    x = 45,998.40

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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.