Home / 70,136.45-96,788.91-39,923.71

Finding the Fourth Proportional to 70,136.45, 96,788.91 and 39,923.71

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Solution

The fourth proportional to 70,136.45, 96,788.91 and 39,923.71 is: 55,095.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,136.45 : 96,788.91 = 39,923.71 : x
  2. Step 2: Convert to fraction form
    70,136.45/96,788.91 = 39,923.71/x
  3. Step 3: Cross multiply
    70,136.45x = 96,788.91 × 39,923.71
  4. Step 4: Simplify right side
    70,136.45x = 3,864,172,374.06
  5. Step 5: Solve for x
    x = 3,864,172,374.06/70,136.45
  6. Step 6: Final answer
    x = 55,095.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.