Home / 62,785.20-86,641.68-35,930.40

Finding the Fourth Proportional to 62,785.20, 86,641.68 and 35,930.40

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Solution

The fourth proportional to 62,785.20, 86,641.68 and 35,930.40 is: 49,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,785.20 : 86,641.68 = 35,930.40 : x
  2. Step 2: Convert to fraction form
    62,785.20/86,641.68 = 35,930.40/x
  3. Step 3: Cross multiply
    62,785.20x = 86,641.68 × 35,930.40
  4. Step 4: Simplify right side
    62,785.20x = 3,113,070,219.07
  5. Step 5: Solve for x
    x = 3,113,070,219.07/62,785.20
  6. Step 6: Final answer
    x = 49,582.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.