Home / 70,252.29-105,378.53-17,661.78

Finding the Fourth Proportional to 70,252.29, 105,378.53 and 17,661.78

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Solution

The fourth proportional to 70,252.29, 105,378.53 and 17,661.78 is: 26,492.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,252.29 : 105,378.53 = 17,661.78 : x
  2. Step 2: Convert to fraction form
    70,252.29/105,378.53 = 17,661.78/x
  3. Step 3: Cross multiply
    70,252.29x = 105,378.53 × 17,661.78
  4. Step 4: Simplify right side
    70,252.29x = 1,861,172,325.27
  5. Step 5: Solve for x
    x = 1,861,172,325.27/70,252.29
  6. Step 6: Final answer
    x = 26,492.69

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1.5x scale

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.