Home / 305,126.27-457,688.48-77,421.44

Finding the Fourth Proportional to 305,126.27, 457,688.48 and 77,421.44

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Solution

The fourth proportional to 305,126.27, 457,688.48 and 77,421.44 is: 116,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,126.27 : 457,688.48 = 77,421.44 : x
  2. Step 2: Convert to fraction form
    305,126.27/457,688.48 = 77,421.44/x
  3. Step 3: Cross multiply
    305,126.27x = 457,688.48 × 77,421.44
  4. Step 4: Simplify right side
    305,126.27x = 35,434,901,193.01
  5. Step 5: Solve for x
    x = 35,434,901,193.01/305,126.27
  6. Step 6: Final answer
    x = 116,131.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.