Home / 98,543.28-135,938.56-62,671.04

Finding the Fourth Proportional to 98,543.28, 135,938.56 and 62,671.04

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Solution

The fourth proportional to 98,543.28, 135,938.56 and 62,671.04 is: 86,453.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,543.28 : 135,938.56 = 62,671.04 : x
  2. Step 2: Convert to fraction form
    98,543.28/135,938.56 = 62,671.04/x
  3. Step 3: Cross multiply
    98,543.28x = 135,938.56 × 62,671.04
  4. Step 4: Simplify right side
    98,543.28x = 8,519,410,931.30
  5. Step 5: Solve for x
    x = 8,519,410,931.30/98,543.28
  6. Step 6: Final answer
    x = 86,453.49

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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.