Home / 74,948.40-112,366.99-45,359.20

Finding the Fourth Proportional to 74,948.40, 112,366.99 and 45,359.20

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Solution

The fourth proportional to 74,948.40, 112,366.99 and 45,359.20 is: 68,005.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,948.40 : 112,366.99 = 45,359.20 : x
  2. Step 2: Convert to fraction form
    74,948.40/112,366.99 = 45,359.20/x
  3. Step 3: Cross multiply
    74,948.40x = 112,366.99 × 45,359.20
  4. Step 4: Simplify right side
    74,948.40x = 5,096,876,772.81
  5. Step 5: Solve for x
    x = 5,096,876,772.81/74,948.40
  6. Step 6: Final answer
    x = 68,005.14

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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.