Home / 74,528.40-111,792.56-19,124.40

Finding the Fourth Proportional to 74,528.40, 111,792.56 and 19,124.40

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Solution

The fourth proportional to 74,528.40, 111,792.56 and 19,124.40 is: 28,686.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,528.40 : 111,792.56 = 19,124.40 : x
  2. Step 2: Convert to fraction form
    74,528.40/111,792.56 = 19,124.40/x
  3. Step 3: Cross multiply
    74,528.40x = 111,792.56 × 19,124.40
  4. Step 4: Simplify right side
    74,528.40x = 2,137,965,634.46
  5. Step 5: Solve for x
    x = 2,137,965,634.46/74,528.40
  6. Step 6: Final answer
    x = 28,686.59

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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.