Home / 98,001.76-135,238.44-57,717.20

Finding the Fourth Proportional to 98,001.76, 135,238.44 and 57,717.20

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Solution

The fourth proportional to 98,001.76, 135,238.44 and 57,717.20 is: 79,647.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,001.76 : 135,238.44 = 57,717.20 : x
  2. Step 2: Convert to fraction form
    98,001.76/135,238.44 = 57,717.20/x
  3. Step 3: Cross multiply
    98,001.76x = 135,238.44 × 57,717.20
  4. Step 4: Simplify right side
    98,001.76x = 7,805,584,089.17
  5. Step 5: Solve for x
    x = 7,805,584,089.17/98,001.76
  6. Step 6: Final answer
    x = 79,647.39

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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.