Home / 45,117.41-67,638.06-28,440.69

Finding the Fourth Proportional to 45,117.41, 67,638.06 and 28,440.69

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Solution

The fourth proportional to 45,117.41, 67,638.06 and 28,440.69 is: 42,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,117.41 : 67,638.06 = 28,440.69 : x
  2. Step 2: Convert to fraction form
    45,117.41/67,638.06 = 28,440.69/x
  3. Step 3: Cross multiply
    45,117.41x = 67,638.06 × 28,440.69
  4. Step 4: Simplify right side
    45,117.41x = 1,923,673,096.66
  5. Step 5: Solve for x
    x = 1,923,673,096.66/45,117.41
  6. Step 6: Final answer
    x = 42,637.05

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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.