Home / 85,110.40-127,663.74-22,780.90

Finding the Fourth Proportional to 85,110.40, 127,663.74 and 22,780.90

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Solution

The fourth proportional to 85,110.40, 127,663.74 and 22,780.90 is: 34,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.40 : 127,663.74 = 22,780.90 : x
  2. Step 2: Convert to fraction form
    85,110.40/127,663.74 = 22,780.90/x
  3. Step 3: Cross multiply
    85,110.40x = 127,663.74 × 22,780.90
  4. Step 4: Simplify right side
    85,110.40x = 2,908,294,894.57
  5. Step 5: Solve for x
    x = 2,908,294,894.57/85,110.40
  6. Step 6: Final answer
    x = 34,170.85

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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.