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Finding the Fourth Proportional to 85,124.50, 127,703.14 and 28,962.34

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Solution

The fourth proportional to 85,124.50, 127,703.14 and 28,962.34 is: 43,449.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,124.50 : 127,703.14 = 28,962.34 : x
  2. Step 2: Convert to fraction form
    85,124.50/127,703.14 = 28,962.34/x
  3. Step 3: Cross multiply
    85,124.50x = 127,703.14 × 28,962.34
  4. Step 4: Simplify right side
    85,124.50x = 3,698,581,759.75
  5. Step 5: Solve for x
    x = 3,698,581,759.75/85,124.50
  6. Step 6: Final answer
    x = 43,449.09

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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.