Home / 77,535.27-107,010.45-47,338.20

Finding the Fourth Proportional to 77,535.27, 107,010.45 and 47,338.20

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Solution

The fourth proportional to 77,535.27, 107,010.45 and 47,338.20 is: 65,333.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,535.27 : 107,010.45 = 47,338.20 : x
  2. Step 2: Convert to fraction form
    77,535.27/107,010.45 = 47,338.20/x
  3. Step 3: Cross multiply
    77,535.27x = 107,010.45 × 47,338.20
  4. Step 4: Simplify right side
    77,535.27x = 5,065,682,084.19
  5. Step 5: Solve for x
    x = 5,065,682,084.19/77,535.27
  6. Step 6: Final answer
    x = 65,333.91

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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.