Home / 56,720.68-78,274.98-31,229.80

Finding the Fourth Proportional to 56,720.68, 78,274.98 and 31,229.80

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Solution

The fourth proportional to 56,720.68, 78,274.98 and 31,229.80 is: 43,097.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,720.68 : 78,274.98 = 31,229.80 : x
  2. Step 2: Convert to fraction form
    56,720.68/78,274.98 = 31,229.80/x
  3. Step 3: Cross multiply
    56,720.68x = 78,274.98 × 31,229.80
  4. Step 4: Simplify right side
    56,720.68x = 2,444,511,970.40
  5. Step 5: Solve for x
    x = 2,444,511,970.40/56,720.68
  6. Step 6: Final answer
    x = 43,097.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.