Home / 74,311.10-111,539.55-36,913.40

Finding the Fourth Proportional to 74,311.10, 111,539.55 and 36,913.40

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Solution

The fourth proportional to 74,311.10, 111,539.55 and 36,913.40 is: 55,406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,311.10 : 111,539.55 = 36,913.40 : x
  2. Step 2: Convert to fraction form
    74,311.10/111,539.55 = 36,913.40/x
  3. Step 3: Cross multiply
    74,311.10x = 111,539.55 × 36,913.40
  4. Step 4: Simplify right side
    74,311.10x = 4,117,304,024.97
  5. Step 5: Solve for x
    x = 4,117,304,024.97/74,311.10
  6. Step 6: Final answer
    x = 55,406.31

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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.