Home / 40,120.64-60,112.48-28,414.40

Finding the Fourth Proportional to 40,120.64, 60,112.48 and 28,414.40

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Solution

The fourth proportional to 40,120.64, 60,112.48 and 28,414.40 is: 42,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.64 : 60,112.48 = 28,414.40 : x
  2. Step 2: Convert to fraction form
    40,120.64/60,112.48 = 28,414.40/x
  3. Step 3: Cross multiply
    40,120.64x = 60,112.48 × 28,414.40
  4. Step 4: Simplify right side
    40,120.64x = 1,708,060,051.71
  5. Step 5: Solve for x
    x = 1,708,060,051.71/40,120.64
  6. Step 6: Final answer
    x = 42,573.10

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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.