Home / 56,721.66-78,279.75-32,855.10

Finding the Fourth Proportional to 56,721.66, 78,279.75 and 32,855.10

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Solution

The fourth proportional to 56,721.66, 78,279.75 and 32,855.10 is: 45,342.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.66 : 78,279.75 = 32,855.10 : x
  2. Step 2: Convert to fraction form
    56,721.66/78,279.75 = 32,855.10/x
  3. Step 3: Cross multiply
    56,721.66x = 78,279.75 × 32,855.10
  4. Step 4: Simplify right side
    56,721.66x = 2,571,889,014.23
  5. Step 5: Solve for x
    x = 2,571,889,014.23/56,721.66
  6. Step 6: Final answer
    x = 45,342.27

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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.