Home / 70,387.35-105,596.58-38,781.13

Finding the Fourth Proportional to 70,387.35, 105,596.58 and 38,781.13

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Solution

The fourth proportional to 70,387.35, 105,596.58 and 38,781.13 is: 58,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,387.35 : 105,596.58 = 38,781.13 : x
  2. Step 2: Convert to fraction form
    70,387.35/105,596.58 = 38,781.13/x
  3. Step 3: Cross multiply
    70,387.35x = 105,596.58 × 38,781.13
  4. Step 4: Simplify right side
    70,387.35x = 4,095,154,696.54
  5. Step 5: Solve for x
    x = 4,095,154,696.54/70,387.35
  6. Step 6: Final answer
    x = 58,180.27

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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.