Home / 83,221.64-124,826.70-30,621.32

Finding the Fourth Proportional to 83,221.64, 124,826.70 and 30,621.32

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Solution

The fourth proportional to 83,221.64, 124,826.70 and 30,621.32 is: 45,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,221.64 : 124,826.70 = 30,621.32 : x
  2. Step 2: Convert to fraction form
    83,221.64/124,826.70 = 30,621.32/x
  3. Step 3: Cross multiply
    83,221.64x = 124,826.70 × 30,621.32
  4. Step 4: Simplify right side
    83,221.64x = 3,822,358,325.24
  5. Step 5: Solve for x
    x = 3,822,358,325.24/83,221.64
  6. Step 6: Final answer
    x = 45,929.86

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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.