Home / 98,212.15-135,532.78-53,500.15

Finding the Fourth Proportional to 98,212.15, 135,532.78 and 53,500.15

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Solution

The fourth proportional to 98,212.15, 135,532.78 and 53,500.15 is: 73,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,212.15 : 135,532.78 = 53,500.15 : x
  2. Step 2: Convert to fraction form
    98,212.15/135,532.78 = 53,500.15/x
  3. Step 3: Cross multiply
    98,212.15x = 135,532.78 × 53,500.15
  4. Step 4: Simplify right side
    98,212.15x = 7,251,023,516.00
  5. Step 5: Solve for x
    x = 7,251,023,516.00/98,212.15
  6. Step 6: Final answer
    x = 73,830.21

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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.