Home / 81,150.75-121,731.65-24,987.39

Finding the Fourth Proportional to 81,150.75, 121,731.65 and 24,987.39

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Solution

The fourth proportional to 81,150.75, 121,731.65 and 24,987.39 is: 37,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,150.75 : 121,731.65 = 24,987.39 : x
  2. Step 2: Convert to fraction form
    81,150.75/121,731.65 = 24,987.39/x
  3. Step 3: Cross multiply
    81,150.75x = 121,731.65 × 24,987.39
  4. Step 4: Simplify right side
    81,150.75x = 3,041,756,088.96
  5. Step 5: Solve for x
    x = 3,041,756,088.96/81,150.75
  6. Step 6: Final answer
    x = 37,482.78

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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.