Home / 77,139.11-115,717.18-24,536.30

Finding the Fourth Proportional to 77,139.11, 115,717.18 and 24,536.30

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Solution

The fourth proportional to 77,139.11, 115,717.18 and 24,536.30 is: 36,807.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,139.11 : 115,717.18 = 24,536.30 : x
  2. Step 2: Convert to fraction form
    77,139.11/115,717.18 = 24,536.30/x
  3. Step 3: Cross multiply
    77,139.11x = 115,717.18 × 24,536.30
  4. Step 4: Simplify right side
    77,139.11x = 2,839,270,803.71
  5. Step 5: Solve for x
    x = 2,839,270,803.71/77,139.11
  6. Step 6: Final answer
    x = 36,807.15

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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.