Home / 84,290.20-116,320.38-48,479.28

Finding the Fourth Proportional to 84,290.20, 116,320.38 and 48,479.28

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Solution

The fourth proportional to 84,290.20, 116,320.38 and 48,479.28 is: 66,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,290.20 : 116,320.38 = 48,479.28 : x
  2. Step 2: Convert to fraction form
    84,290.20/116,320.38 = 48,479.28/x
  3. Step 3: Cross multiply
    84,290.20x = 116,320.38 × 48,479.28
  4. Step 4: Simplify right side
    84,290.20x = 5,639,128,271.73
  5. Step 5: Solve for x
    x = 5,639,128,271.73/84,290.20
  6. Step 6: Final answer
    x = 66,901.35

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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.