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Finding the Fourth Proportional to 56,331.60, 84,444.60 and 21,294.80

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Solution

The fourth proportional to 56,331.60, 84,444.60 and 21,294.80 is: 31,922.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,331.60 : 84,444.60 = 21,294.80 : x
  2. Step 2: Convert to fraction form
    56,331.60/84,444.60 = 21,294.80/x
  3. Step 3: Cross multiply
    56,331.60x = 84,444.60 × 21,294.80
  4. Step 4: Simplify right side
    56,331.60x = 1,798,230,868.08
  5. Step 5: Solve for x
    x = 1,798,230,868.08/56,331.60
  6. Step 6: Final answer
    x = 31,922.24

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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.