Home / 75,428.64-113,146.74-19,269.18

Finding the Fourth Proportional to 75,428.64, 113,146.74 and 19,269.18

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Solution

The fourth proportional to 75,428.64, 113,146.74 and 19,269.18 is: 28,904.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,428.64 : 113,146.74 = 19,269.18 : x
  2. Step 2: Convert to fraction form
    75,428.64/113,146.74 = 19,269.18/x
  3. Step 3: Cross multiply
    75,428.64x = 113,146.74 × 19,269.18
  4. Step 4: Simplify right side
    75,428.64x = 2,180,244,899.47
  5. Step 5: Solve for x
    x = 2,180,244,899.47/75,428.64
  6. Step 6: Final answer
    x = 28,904.74

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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.