Home / 74,730.56-103,127.17-40,738.50

Finding the Fourth Proportional to 74,730.56, 103,127.17 and 40,738.50

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Solution

The fourth proportional to 74,730.56, 103,127.17 and 40,738.50 is: 56,218.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,730.56 : 103,127.17 = 40,738.50 : x
  2. Step 2: Convert to fraction form
    74,730.56/103,127.17 = 40,738.50/x
  3. Step 3: Cross multiply
    74,730.56x = 103,127.17 × 40,738.50
  4. Step 4: Simplify right side
    74,730.56x = 4,201,246,652.70
  5. Step 5: Solve for x
    x = 4,201,246,652.70/74,730.56
  6. Step 6: Final answer
    x = 56,218.59

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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.