Home / 77,709.20-107,277.72-45,888.08

Finding the Fourth Proportional to 77,709.20, 107,277.72 and 45,888.08

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Solution

The fourth proportional to 77,709.20, 107,277.72 and 45,888.08 is: 63,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,709.20 : 107,277.72 = 45,888.08 : x
  2. Step 2: Convert to fraction form
    77,709.20/107,277.72 = 45,888.08/x
  3. Step 3: Cross multiply
    77,709.20x = 107,277.72 × 45,888.08
  4. Step 4: Simplify right side
    77,709.20x = 4,922,768,597.58
  5. Step 5: Solve for x
    x = 4,922,768,597.58/77,709.20
  6. Step 6: Final answer
    x = 63,348.59

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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.