Home / 77,773.19-107,329.04-43,782.92

Finding the Fourth Proportional to 77,773.19, 107,329.04 and 43,782.92

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Solution

The fourth proportional to 77,773.19, 107,329.04 and 43,782.92 is: 60,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,773.19 : 107,329.04 = 43,782.92 : x
  2. Step 2: Convert to fraction form
    77,773.19/107,329.04 = 43,782.92/x
  3. Step 3: Cross multiply
    77,773.19x = 107,329.04 × 43,782.92
  4. Step 4: Simplify right side
    77,773.19x = 4,699,179,008.11
  5. Step 5: Solve for x
    x = 4,699,179,008.11/77,773.19
  6. Step 6: Final answer
    x = 60,421.58

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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.