Home / 77,037.24-115,555.86-20,877.35

Finding the Fourth Proportional to 77,037.24, 115,555.86 and 20,877.35

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Solution

The fourth proportional to 77,037.24, 115,555.86 and 20,877.35 is: 31,316.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,037.24 : 115,555.86 = 20,877.35 : x
  2. Step 2: Convert to fraction form
    77,037.24/115,555.86 = 20,877.35/x
  3. Step 3: Cross multiply
    77,037.24x = 115,555.86 × 20,877.35
  4. Step 4: Simplify right side
    77,037.24x = 2,412,499,555.99
  5. Step 5: Solve for x
    x = 2,412,499,555.99/77,037.24
  6. Step 6: Final answer
    x = 31,316.02

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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.