Home / 85,221.12-127,827-26,056.74

Finding the Fourth Proportional to 85,221.12, 127,827 and 26,056.74

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Solution

The fourth proportional to 85,221.12, 127,827 and 26,056.74 is: 39,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,221.12 : 127,827 = 26,056.74 : x
  2. Step 2: Convert to fraction form
    85,221.12/127,827 = 26,056.74/x
  3. Step 3: Cross multiply
    85,221.12x = 127,827 × 26,056.74
  4. Step 4: Simplify right side
    85,221.12x = 3,330,754,903.98
  5. Step 5: Solve for x
    x = 3,330,754,903.98/85,221.12
  6. Step 6: Final answer
    x = 39,083.68

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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.