Home / 92,860.50-128,144.04-50,418.12

Finding the Fourth Proportional to 92,860.50, 128,144.04 and 50,418.12

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Solution

The fourth proportional to 92,860.50, 128,144.04 and 50,418.12 is: 69,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,860.50 : 128,144.04 = 50,418.12 : x
  2. Step 2: Convert to fraction form
    92,860.50/128,144.04 = 50,418.12/x
  3. Step 3: Cross multiply
    92,860.50x = 128,144.04 × 50,418.12
  4. Step 4: Simplify right side
    92,860.50x = 6,460,781,586.00
  5. Step 5: Solve for x
    x = 6,460,781,586.00/92,860.50
  6. Step 6: Final answer
    x = 69,575.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.