Home / 74,432.28-102,716.72-40,440.48

Finding the Fourth Proportional to 74,432.28, 102,716.72 and 40,440.48

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Solution

The fourth proportional to 74,432.28, 102,716.72 and 40,440.48 is: 55,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,432.28 : 102,716.72 = 40,440.48 : x
  2. Step 2: Convert to fraction form
    74,432.28/102,716.72 = 40,440.48/x
  3. Step 3: Cross multiply
    74,432.28x = 102,716.72 × 40,440.48
  4. Step 4: Simplify right side
    74,432.28x = 4,153,913,460.83
  5. Step 5: Solve for x
    x = 4,153,913,460.83/74,432.28
  6. Step 6: Final answer
    x = 55,807.96

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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.