Home / 74,272.50-102,496.09-40,280.97

Finding the Fourth Proportional to 74,272.50, 102,496.09 and 40,280.97

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Solution

The fourth proportional to 74,272.50, 102,496.09 and 40,280.97 is: 55,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.50 : 102,496.09 = 40,280.97 : x
  2. Step 2: Convert to fraction form
    74,272.50/102,496.09 = 40,280.97/x
  3. Step 3: Cross multiply
    74,272.50x = 102,496.09 × 40,280.97
  4. Step 4: Simplify right side
    74,272.50x = 4,128,641,926.41
  5. Step 5: Solve for x
    x = 4,128,641,926.41/74,272.50
  6. Step 6: Final answer
    x = 55,587.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.