Home / 91,142.68-136,620.16-34,967.80

Finding the Fourth Proportional to 91,142.68, 136,620.16 and 34,967.80

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Solution

The fourth proportional to 91,142.68, 136,620.16 and 34,967.80 is: 52,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,142.68 : 136,620.16 = 34,967.80 : x
  2. Step 2: Convert to fraction form
    91,142.68/136,620.16 = 34,967.80/x
  3. Step 3: Cross multiply
    91,142.68x = 136,620.16 × 34,967.80
  4. Step 4: Simplify right side
    91,142.68x = 4,777,306,430.85
  5. Step 5: Solve for x
    x = 4,777,306,430.85/91,142.68
  6. Step 6: Final answer
    x = 52,415.69

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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.