Home / 74,931.52-112,394.68-18,772.11

Finding the Fourth Proportional to 74,931.52, 112,394.68 and 18,772.11

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Solution

The fourth proportional to 74,931.52, 112,394.68 and 18,772.11 is: 28,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,931.52 : 112,394.68 = 18,772.11 : x
  2. Step 2: Convert to fraction form
    74,931.52/112,394.68 = 18,772.11/x
  3. Step 3: Cross multiply
    74,931.52x = 112,394.68 × 18,772.11
  4. Step 4: Simplify right side
    74,931.52x = 2,109,884,921.53
  5. Step 5: Solve for x
    x = 2,109,884,921.53/74,931.52
  6. Step 6: Final answer
    x = 28,157.51

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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.