Home / 70,131.80-96,780.34-38,300.83

Finding the Fourth Proportional to 70,131.80, 96,780.34 and 38,300.83

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Solution

The fourth proportional to 70,131.80, 96,780.34 and 38,300.83 is: 52,854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,131.80 : 96,780.34 = 38,300.83 : x
  2. Step 2: Convert to fraction form
    70,131.80/96,780.34 = 38,300.83/x
  3. Step 3: Cross multiply
    70,131.80x = 96,780.34 × 38,300.83
  4. Step 4: Simplify right side
    70,131.80x = 3,706,767,349.68
  5. Step 5: Solve for x
    x = 3,706,767,349.68/70,131.80
  6. Step 6: Final answer
    x = 52,854.30

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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.