Home / 45,161.76-67,752.05-13,570.55

Finding the Fourth Proportional to 45,161.76, 67,752.05 and 13,570.55

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Solution

The fourth proportional to 45,161.76, 67,752.05 and 13,570.55 is: 20,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,161.76 : 67,752.05 = 13,570.55 : x
  2. Step 2: Convert to fraction form
    45,161.76/67,752.05 = 13,570.55/x
  3. Step 3: Cross multiply
    45,161.76x = 67,752.05 × 13,570.55
  4. Step 4: Simplify right side
    45,161.76x = 919,432,175.51
  5. Step 5: Solve for x
    x = 919,432,175.51/45,161.76
  6. Step 6: Final answer
    x = 20,358.64

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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.