Home / 45,048.16-67,581.78-13,460.68

Finding the Fourth Proportional to 45,048.16, 67,581.78 and 13,460.68

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Solution

The fourth proportional to 45,048.16, 67,581.78 and 13,460.68 is: 20,193.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,048.16 : 67,581.78 = 13,460.68 : x
  2. Step 2: Convert to fraction form
    45,048.16/67,581.78 = 13,460.68/x
  3. Step 3: Cross multiply
    45,048.16x = 67,581.78 × 13,460.68
  4. Step 4: Simplify right side
    45,048.16x = 909,696,714.41
  5. Step 5: Solve for x
    x = 909,696,714.41/45,048.16
  6. Step 6: Final answer
    x = 20,193.87

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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.