Home / 55,011.32-75,909.32-30,808.92

Finding the Fourth Proportional to 55,011.32, 75,909.32 and 30,808.92

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Solution

The fourth proportional to 55,011.32, 75,909.32 and 30,808.92 is: 42,512.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,011.32 : 75,909.32 = 30,808.92 : x
  2. Step 2: Convert to fraction form
    55,011.32/75,909.32 = 30,808.92/x
  3. Step 3: Cross multiply
    55,011.32x = 75,909.32 × 30,808.92
  4. Step 4: Simplify right side
    55,011.32x = 2,338,684,167.13
  5. Step 5: Solve for x
    x = 2,338,684,167.13/55,011.32
  6. Step 6: Final answer
    x = 42,512.78

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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.