Home / 77,966.28-116,948.40-18,801.51

Finding the Fourth Proportional to 77,966.28, 116,948.40 and 18,801.51

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Solution

The fourth proportional to 77,966.28, 116,948.40 and 18,801.51 is: 28,202.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,966.28 : 116,948.40 = 18,801.51 : x
  2. Step 2: Convert to fraction form
    77,966.28/116,948.40 = 18,801.51/x
  3. Step 3: Cross multiply
    77,966.28x = 116,948.40 × 18,801.51
  4. Step 4: Simplify right side
    77,966.28x = 2,198,806,512.08
  5. Step 5: Solve for x
    x = 2,198,806,512.08/77,966.28
  6. Step 6: Final answer
    x = 28,202.02

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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.