Home / 91,064.72-125,663.85-50,781.12

Finding the Fourth Proportional to 91,064.72, 125,663.85 and 50,781.12

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Solution

The fourth proportional to 91,064.72, 125,663.85 and 50,781.12 is: 70,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,064.72 : 125,663.85 = 50,781.12 : x
  2. Step 2: Convert to fraction form
    91,064.72/125,663.85 = 50,781.12/x
  3. Step 3: Cross multiply
    91,064.72x = 125,663.85 × 50,781.12
  4. Step 4: Simplify right side
    91,064.72x = 6,381,351,046.51
  5. Step 5: Solve for x
    x = 6,381,351,046.51/91,064.72
  6. Step 6: Final answer
    x = 70,074.90

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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.