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Finding the Fourth Proportional to 63,674.17, 87,870.77 and 39,814.81

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Solution

The fourth proportional to 63,674.17, 87,870.77 and 39,814.81 is: 54,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,674.17 : 87,870.77 = 39,814.81 : x
  2. Step 2: Convert to fraction form
    63,674.17/87,870.77 = 39,814.81/x
  3. Step 3: Cross multiply
    63,674.17x = 87,870.77 × 39,814.81
  4. Step 4: Simplify right side
    63,674.17x = 3,498,558,012.10
  5. Step 5: Solve for x
    x = 3,498,558,012.10/63,674.17
  6. Step 6: Final answer
    x = 54,944.70

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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.