Home / 56,720.79-78,279.21-32,847.89

Finding the Fourth Proportional to 56,720.79, 78,279.21 and 32,847.89

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Solution

The fourth proportional to 56,720.79, 78,279.21 and 32,847.89 is: 45,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,720.79 : 78,279.21 = 32,847.89 : x
  2. Step 2: Convert to fraction form
    56,720.79/78,279.21 = 32,847.89/x
  3. Step 3: Cross multiply
    56,720.79x = 78,279.21 × 32,847.89
  4. Step 4: Simplify right side
    56,720.79x = 2,571,306,487.97
  5. Step 5: Solve for x
    x = 2,571,306,487.97/56,720.79
  6. Step 6: Final answer
    x = 45,332.70

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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.