Home / 90,128.16-135,211.28-33,967.08

Finding the Fourth Proportional to 90,128.16, 135,211.28 and 33,967.08

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Solution

The fourth proportional to 90,128.16, 135,211.28 and 33,967.08 is: 50,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,128.16 : 135,211.28 = 33,967.08 : x
  2. Step 2: Convert to fraction form
    90,128.16/135,211.28 = 33,967.08/x
  3. Step 3: Cross multiply
    90,128.16x = 135,211.28 × 33,967.08
  4. Step 4: Simplify right side
    90,128.16x = 4,592,732,194.83
  5. Step 5: Solve for x
    x = 4,592,732,194.83/90,128.16
  6. Step 6: Final answer
    x = 50,957.79

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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.