Home / 70,409.24-105,614.08-17,818.70

Finding the Fourth Proportional to 70,409.24, 105,614.08 and 17,818.70

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Solution

The fourth proportional to 70,409.24, 105,614.08 and 17,818.70 is: 26,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,409.24 : 105,614.08 = 17,818.70 : x
  2. Step 2: Convert to fraction form
    70,409.24/105,614.08 = 17,818.70/x
  3. Step 3: Cross multiply
    70,409.24x = 105,614.08 × 17,818.70
  4. Step 4: Simplify right side
    70,409.24x = 1,881,905,607.30
  5. Step 5: Solve for x
    x = 1,881,905,607.30/70,409.24
  6. Step 6: Final answer
    x = 26,728.11

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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.