Home / 81,931.32-113,056.43-46,120.68

Finding the Fourth Proportional to 81,931.32, 113,056.43 and 46,120.68

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Solution

The fourth proportional to 81,931.32, 113,056.43 and 46,120.68 is: 63,641.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,931.32 : 113,056.43 = 46,120.68 : x
  2. Step 2: Convert to fraction form
    81,931.32/113,056.43 = 46,120.68/x
  3. Step 3: Cross multiply
    81,931.32x = 113,056.43 × 46,120.68
  4. Step 4: Simplify right side
    81,931.32x = 5,214,239,199.37
  5. Step 5: Solve for x
    x = 5,214,239,199.37/81,931.32
  6. Step 6: Final answer
    x = 63,641.59

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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.