Home / 85,117.18-127,673.34-22,787.68

Finding the Fourth Proportional to 85,117.18, 127,673.34 and 22,787.68

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Solution

The fourth proportional to 85,117.18, 127,673.34 and 22,787.68 is: 34,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,117.18 : 127,673.34 = 22,787.68 : x
  2. Step 2: Convert to fraction form
    85,117.18/127,673.34 = 22,787.68/x
  3. Step 3: Cross multiply
    85,117.18x = 127,673.34 × 22,787.68
  4. Step 4: Simplify right side
    85,117.18x = 2,909,379,216.45
  5. Step 5: Solve for x
    x = 2,909,379,216.45/85,117.18
  6. Step 6: Final answer
    x = 34,180.87

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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.