Home / 56,010.40-84,015.60-51,539.20

Finding the Fourth Proportional to 56,010.40, 84,015.60 and 51,539.20

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Solution

The fourth proportional to 56,010.40, 84,015.60 and 51,539.20 is: 77,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,010.40 : 84,015.60 = 51,539.20 : x
  2. Step 2: Convert to fraction form
    56,010.40/84,015.60 = 51,539.20/x
  3. Step 3: Cross multiply
    56,010.40x = 84,015.60 × 51,539.20
  4. Step 4: Simplify right side
    56,010.40x = 4,330,096,811.52
  5. Step 5: Solve for x
    x = 4,330,096,811.52/56,010.40
  6. Step 6: Final answer
    x = 77,308.80

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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.