Home / 51,085.08-76,671.36-28,920.24

Finding the Fourth Proportional to 51,085.08, 76,671.36 and 28,920.24

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Solution

The fourth proportional to 51,085.08, 76,671.36 and 28,920.24 is: 43,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,085.08 : 76,671.36 = 28,920.24 : x
  2. Step 2: Convert to fraction form
    51,085.08/76,671.36 = 28,920.24/x
  3. Step 3: Cross multiply
    51,085.08x = 76,671.36 × 28,920.24
  4. Step 4: Simplify right side
    51,085.08x = 2,217,354,132.33
  5. Step 5: Solve for x
    x = 2,217,354,132.33/51,085.08
  6. Step 6: Final answer
    x = 43,405.12

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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.