Home / 77,318.27-106,697.40-45,489.21

Finding the Fourth Proportional to 77,318.27, 106,697.40 and 45,489.21

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Solution

The fourth proportional to 77,318.27, 106,697.40 and 45,489.21 is: 62,774.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,318.27 : 106,697.40 = 45,489.21 : x
  2. Step 2: Convert to fraction form
    77,318.27/106,697.40 = 45,489.21/x
  3. Step 3: Cross multiply
    77,318.27x = 106,697.40 × 45,489.21
  4. Step 4: Simplify right side
    77,318.27x = 4,853,580,435.05
  5. Step 5: Solve for x
    x = 4,853,580,435.05/77,318.27
  6. Step 6: Final answer
    x = 62,774.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.