Home / 45,040.61-67,570.02-13,451.28

Finding the Fourth Proportional to 45,040.61, 67,570.02 and 13,451.28

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Solution

The fourth proportional to 45,040.61, 67,570.02 and 13,451.28 is: 20,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,040.61 : 67,570.02 = 13,451.28 : x
  2. Step 2: Convert to fraction form
    45,040.61/67,570.02 = 13,451.28/x
  3. Step 3: Cross multiply
    45,040.61x = 67,570.02 × 13,451.28
  4. Step 4: Simplify right side
    45,040.61x = 908,903,258.63
  5. Step 5: Solve for x
    x = 908,903,258.63/45,040.61
  6. Step 6: Final answer
    x = 20,179.64

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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.