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Finding the Fourth Proportional to 70,400.62, 105,601.35 and 17,810.08

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Solution

The fourth proportional to 70,400.62, 105,601.35 and 17,810.08 is: 26,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,400.62 : 105,601.35 = 17,810.08 : x
  2. Step 2: Convert to fraction form
    70,400.62/105,601.35 = 17,810.08/x
  3. Step 3: Cross multiply
    70,400.62x = 105,601.35 × 17,810.08
  4. Step 4: Simplify right side
    70,400.62x = 1,880,768,491.61
  5. Step 5: Solve for x
    x = 1,880,768,491.61/70,400.62
  6. Step 6: Final answer
    x = 26,715.23

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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.