Home / 77,351.15-115,797-42,184.19

Finding the Fourth Proportional to 77,351.15, 115,797 and 42,184.19

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Solution

The fourth proportional to 77,351.15, 115,797 and 42,184.19 is: 63,151.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,351.15 : 115,797 = 42,184.19 : x
  2. Step 2: Convert to fraction form
    77,351.15/115,797 = 42,184.19/x
  3. Step 3: Cross multiply
    77,351.15x = 115,797 × 42,184.19
  4. Step 4: Simplify right side
    77,351.15x = 4,884,802,649.43
  5. Step 5: Solve for x
    x = 4,884,802,649.43/77,351.15
  6. Step 6: Final answer
    x = 63,151.00

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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.