Home / 45,931.57-68,870.54-17,818.78

Finding the Fourth Proportional to 45,931.57, 68,870.54 and 17,818.78

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Solution

The fourth proportional to 45,931.57, 68,870.54 and 17,818.78 is: 26,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,931.57 : 68,870.54 = 17,818.78 : x
  2. Step 2: Convert to fraction form
    45,931.57/68,870.54 = 17,818.78/x
  3. Step 3: Cross multiply
    45,931.57x = 68,870.54 × 17,818.78
  4. Step 4: Simplify right side
    45,931.57x = 1,227,188,656.39
  5. Step 5: Solve for x
    x = 1,227,188,656.39/45,931.57
  6. Step 6: Final answer
    x = 26,717.76

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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.