Home / 50,317.60-75,428.40-18,719.20

Finding the Fourth Proportional to 50,317.60, 75,428.40 and 18,719.20

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Solution

The fourth proportional to 50,317.60, 75,428.40 and 18,719.20 is: 28,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,317.60 : 75,428.40 = 18,719.20 : x
  2. Step 2: Convert to fraction form
    50,317.60/75,428.40 = 18,719.20/x
  3. Step 3: Cross multiply
    50,317.60x = 75,428.40 × 18,719.20
  4. Step 4: Simplify right side
    50,317.60x = 1,411,959,305.28
  5. Step 5: Solve for x
    x = 1,411,959,305.28/50,317.60
  6. Step 6: Final answer
    x = 28,060.94

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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.