Home / 77,764.24-107,329.80-45,931.60

Finding the Fourth Proportional to 77,764.24, 107,329.80 and 45,931.60

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Solution

The fourth proportional to 77,764.24, 107,329.80 and 45,931.60 is: 63,394.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,764.24 : 107,329.80 = 45,931.60 : x
  2. Step 2: Convert to fraction form
    77,764.24/107,329.80 = 45,931.60/x
  3. Step 3: Cross multiply
    77,764.24x = 107,329.80 × 45,931.60
  4. Step 4: Simplify right side
    77,764.24x = 4,929,829,441.68
  5. Step 5: Solve for x
    x = 4,929,829,441.68/77,764.24
  6. Step 6: Final answer
    x = 63,394.56

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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.