Home / 90,619.52-135,929.28-35,228.48

Finding the Fourth Proportional to 90,619.52, 135,929.28 and 35,228.48

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Solution

The fourth proportional to 90,619.52, 135,929.28 and 35,228.48 is: 52,842.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,619.52 : 135,929.28 = 35,228.48 : x
  2. Step 2: Convert to fraction form
    90,619.52/135,929.28 = 35,228.48/x
  3. Step 3: Cross multiply
    90,619.52x = 135,929.28 × 35,228.48
  4. Step 4: Simplify right side
    90,619.52x = 4,788,581,921.89
  5. Step 5: Solve for x
    x = 4,788,581,921.89/90,619.52
  6. Step 6: Final answer
    x = 52,842.72

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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.