Home / 52,765.20-79,128.60-26,461.20

Finding the Fourth Proportional to 52,765.20, 79,128.60 and 26,461.20

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Solution

The fourth proportional to 52,765.20, 79,128.60 and 26,461.20 is: 39,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,765.20 : 79,128.60 = 26,461.20 : x
  2. Step 2: Convert to fraction form
    52,765.20/79,128.60 = 26,461.20/x
  3. Step 3: Cross multiply
    52,765.20x = 79,128.60 × 26,461.20
  4. Step 4: Simplify right side
    52,765.20x = 2,093,837,710.32
  5. Step 5: Solve for x
    x = 2,093,837,710.32/52,765.20
  6. Step 6: Final answer
    x = 39,682.17

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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.