Home / 61,235.20-91,755.60-40,434.40

Finding the Fourth Proportional to 61,235.20, 91,755.60 and 40,434.40

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Solution

The fourth proportional to 61,235.20, 91,755.60 and 40,434.40 is: 60,587.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,235.20 : 91,755.60 = 40,434.40 : x
  2. Step 2: Convert to fraction form
    61,235.20/91,755.60 = 40,434.40/x
  3. Step 3: Cross multiply
    61,235.20x = 91,755.60 × 40,434.40
  4. Step 4: Simplify right side
    61,235.20x = 3,710,082,632.64
  5. Step 5: Solve for x
    x = 3,710,082,632.64/61,235.20
  6. Step 6: Final answer
    x = 60,587.42

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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.