Home / 85,122.50-127,700.15-28,960.34

Finding the Fourth Proportional to 85,122.50, 127,700.15 and 28,960.34

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Solution

The fourth proportional to 85,122.50, 127,700.15 and 28,960.34 is: 43,446.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,122.50 : 127,700.15 = 28,960.34 : x
  2. Step 2: Convert to fraction form
    85,122.50/127,700.15 = 28,960.34/x
  3. Step 3: Cross multiply
    85,122.50x = 127,700.15 × 28,960.34
  4. Step 4: Simplify right side
    85,122.50x = 3,698,238,978.75
  5. Step 5: Solve for x
    x = 3,698,238,978.75/85,122.50
  6. Step 6: Final answer
    x = 43,446.08

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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.