Home / 101,511.47-140,053.62-59,061.80

Finding the Fourth Proportional to 101,511.47, 140,053.62 and 59,061.80

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Solution

The fourth proportional to 101,511.47, 140,053.62 and 59,061.80 is: 81,486.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,511.47 : 140,053.62 = 59,061.80 : x
  2. Step 2: Convert to fraction form
    101,511.47/140,053.62 = 59,061.80/x
  3. Step 3: Cross multiply
    101,511.47x = 140,053.62 × 59,061.80
  4. Step 4: Simplify right side
    101,511.47x = 8,271,817,898.14
  5. Step 5: Solve for x
    x = 8,271,817,898.14/101,511.47
  6. Step 6: Final answer
    x = 81,486.54

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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.