Home / 65,390.20-97,826.10-56,721.40

Finding the Fourth Proportional to 65,390.20, 97,826.10 and 56,721.40

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Solution

The fourth proportional to 65,390.20, 97,826.10 and 56,721.40 is: 84,857.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,390.20 : 97,826.10 = 56,721.40 : x
  2. Step 2: Convert to fraction form
    65,390.20/97,826.10 = 56,721.40/x
  3. Step 3: Cross multiply
    65,390.20x = 97,826.10 × 56,721.40
  4. Step 4: Simplify right side
    65,390.20x = 5,548,833,348.54
  5. Step 5: Solve for x
    x = 5,548,833,348.54/65,390.20
  6. Step 6: Final answer
    x = 84,857.26

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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.