Home / 56,189.14-84,296.02-21,128.80

Finding the Fourth Proportional to 56,189.14, 84,296.02 and 21,128.80

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Solution

The fourth proportional to 56,189.14, 84,296.02 and 21,128.80 is: 31,697.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,189.14 : 84,296.02 = 21,128.80 : x
  2. Step 2: Convert to fraction form
    56,189.14/84,296.02 = 21,128.80/x
  3. Step 3: Cross multiply
    56,189.14x = 84,296.02 × 21,128.80
  4. Step 4: Simplify right side
    56,189.14x = 1,781,073,220.25
  5. Step 5: Solve for x
    x = 1,781,073,220.25/56,189.14
  6. Step 6: Final answer
    x = 31,697.82

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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.