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Finding the Fourth Proportional to 56,218.40, 84,316.80 and 16,776.80

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Solution

The fourth proportional to 56,218.40, 84,316.80 and 16,776.80 is: 25,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,218.40 : 84,316.80 = 16,776.80 : x
  2. Step 2: Convert to fraction form
    56,218.40/84,316.80 = 16,776.80/x
  3. Step 3: Cross multiply
    56,218.40x = 84,316.80 × 16,776.80
  4. Step 4: Simplify right side
    56,218.40x = 1,414,566,090.24
  5. Step 5: Solve for x
    x = 1,414,566,090.24/56,218.40
  6. Step 6: Final answer
    x = 25,161.98

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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.