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Finding the Fourth Proportional to 56,571.01, 78,609.29 and 55,955.88

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Solution

The fourth proportional to 56,571.01, 78,609.29 and 55,955.88 is: 77,754.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,571.01 : 78,609.29 = 55,955.88 : x
  2. Step 2: Convert to fraction form
    56,571.01/78,609.29 = 55,955.88/x
  3. Step 3: Cross multiply
    56,571.01x = 78,609.29 × 55,955.88
  4. Step 4: Simplify right side
    56,571.01x = 4,398,651,718.35
  5. Step 5: Solve for x
    x = 4,398,651,718.35/56,571.01
  6. Step 6: Final answer
    x = 77,754.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.