Home / 77,406.21-116,142.18-42,304.86

Finding the Fourth Proportional to 77,406.21, 116,142.18 and 42,304.86

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Solution

The fourth proportional to 77,406.21, 116,142.18 and 42,304.86 is: 63,475.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,406.21 : 116,142.18 = 42,304.86 : x
  2. Step 2: Convert to fraction form
    77,406.21/116,142.18 = 42,304.86/x
  3. Step 3: Cross multiply
    77,406.21x = 116,142.18 × 42,304.86
  4. Step 4: Simplify right side
    77,406.21x = 4,913,378,664.99
  5. Step 5: Solve for x
    x = 4,913,378,664.99/77,406.21
  6. Step 6: Final answer
    x = 63,475.25

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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.