Home / 45,557.60-68,336.40-40,335.20

Finding the Fourth Proportional to 45,557.60, 68,336.40 and 40,335.20

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Solution

The fourth proportional to 45,557.60, 68,336.40 and 40,335.20 is: 60,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,557.60 : 68,336.40 = 40,335.20 : x
  2. Step 2: Convert to fraction form
    45,557.60/68,336.40 = 40,335.20/x
  3. Step 3: Cross multiply
    45,557.60x = 68,336.40 × 40,335.20
  4. Step 4: Simplify right side
    45,557.60x = 2,756,362,361.28
  5. Step 5: Solve for x
    x = 2,756,362,361.28/45,557.60
  6. Step 6: Final answer
    x = 60,502.80

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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.