Home / 31,104.45-46,711.35-30,120.30

Finding the Fourth Proportional to 31,104.45, 46,711.35 and 30,120.30

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Solution

The fourth proportional to 31,104.45, 46,711.35 and 30,120.30 is: 45,233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,104.45 : 46,711.35 = 30,120.30 : x
  2. Step 2: Convert to fraction form
    31,104.45/46,711.35 = 30,120.30/x
  3. Step 3: Cross multiply
    31,104.45x = 46,711.35 × 30,120.30
  4. Step 4: Simplify right side
    31,104.45x = 1,406,959,875.41
  5. Step 5: Solve for x
    x = 1,406,959,875.41/31,104.45
  6. Step 6: Final answer
    x = 45,233.40

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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.