Home / 77,199.35-106,561.38-45,377.69

Finding the Fourth Proportional to 77,199.35, 106,561.38 and 45,377.69

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Solution

The fourth proportional to 77,199.35, 106,561.38 and 45,377.69 is: 62,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,199.35 : 106,561.38 = 45,377.69 : x
  2. Step 2: Convert to fraction form
    77,199.35/106,561.38 = 45,377.69/x
  3. Step 3: Cross multiply
    77,199.35x = 106,561.38 × 45,377.69
  4. Step 4: Simplify right side
    77,199.35x = 4,835,508,734.81
  5. Step 5: Solve for x
    x = 4,835,508,734.81/77,199.35
  6. Step 6: Final answer
    x = 62,636.65

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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.