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Finding the Fourth Proportional to 53,881.90, 80,822.85 and 51,606.70

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Solution

The fourth proportional to 53,881.90, 80,822.85 and 51,606.70 is: 77,410.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,881.90 : 80,822.85 = 51,606.70 : x
  2. Step 2: Convert to fraction form
    53,881.90/80,822.85 = 51,606.70/x
  3. Step 3: Cross multiply
    53,881.90x = 80,822.85 × 51,606.70
  4. Step 4: Simplify right side
    53,881.90x = 4,171,000,573.10
  5. Step 5: Solve for x
    x = 4,171,000,573.10/53,881.90
  6. Step 6: Final answer
    x = 77,410.05

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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.