Home / 70,819.36-97,734.24-38,987.92

Finding the Fourth Proportional to 70,819.36, 97,734.24 and 38,987.92

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Solution

The fourth proportional to 70,819.36, 97,734.24 and 38,987.92 is: 53,805.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,819.36 : 97,734.24 = 38,987.92 : x
  2. Step 2: Convert to fraction form
    70,819.36/97,734.24 = 38,987.92/x
  3. Step 3: Cross multiply
    70,819.36x = 97,734.24 × 38,987.92
  4. Step 4: Simplify right side
    70,819.36x = 3,810,454,730.38
  5. Step 5: Solve for x
    x = 3,810,454,730.38/70,819.36
  6. Step 6: Final answer
    x = 53,805.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.