Home / 90,852.80-136,258.56-28,508.48

Finding the Fourth Proportional to 90,852.80, 136,258.56 and 28,508.48

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Solution

The fourth proportional to 90,852.80, 136,258.56 and 28,508.48 is: 42,756.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,852.80 : 136,258.56 = 28,508.48 : x
  2. Step 2: Convert to fraction form
    90,852.80/136,258.56 = 28,508.48/x
  3. Step 3: Cross multiply
    90,852.80x = 136,258.56 × 28,508.48
  4. Step 4: Simplify right side
    90,852.80x = 3,884,524,432.59
  5. Step 5: Solve for x
    x = 3,884,524,432.59/90,852.80
  6. Step 6: Final answer
    x = 42,756.24

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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.