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Finding the Fourth Proportional to 56,853.60, 85,279.60 and 25,688.80

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Solution

The fourth proportional to 56,853.60, 85,279.60 and 25,688.80 is: 38,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853.60 : 85,279.60 = 25,688.80 : x
  2. Step 2: Convert to fraction form
    56,853.60/85,279.60 = 25,688.80/x
  3. Step 3: Cross multiply
    56,853.60x = 85,279.60 × 25,688.80
  4. Step 4: Simplify right side
    56,853.60x = 2,190,730,588.48
  5. Step 5: Solve for x
    x = 2,190,730,588.48/56,853.60
  6. Step 6: Final answer
    x = 38,532.84

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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.