Home / 80,700.93-121,050.59-20,729.07

Finding the Fourth Proportional to 80,700.93, 121,050.59 and 20,729.07

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Solution

The fourth proportional to 80,700.93, 121,050.59 and 20,729.07 is: 31,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,700.93 : 121,050.59 = 20,729.07 : x
  2. Step 2: Convert to fraction form
    80,700.93/121,050.59 = 20,729.07/x
  3. Step 3: Cross multiply
    80,700.93x = 121,050.59 × 20,729.07
  4. Step 4: Simplify right side
    80,700.93x = 2,509,266,050.01
  5. Step 5: Solve for x
    x = 2,509,266,050.01/80,700.93
  6. Step 6: Final answer
    x = 31,093.40

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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.