Home / 88,101.76-121,681.32-58,021.52

Finding the Fourth Proportional to 88,101.76, 121,681.32 and 58,021.52

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Solution

The fourth proportional to 88,101.76, 121,681.32 and 58,021.52 is: 80,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,101.76 : 121,681.32 = 58,021.52 : x
  2. Step 2: Convert to fraction form
    88,101.76/121,681.32 = 58,021.52/x
  3. Step 3: Cross multiply
    88,101.76x = 121,681.32 × 58,021.52
  4. Step 4: Simplify right side
    88,101.76x = 7,060,135,142.01
  5. Step 5: Solve for x
    x = 7,060,135,142.01/88,101.76
  6. Step 6: Final answer
    x = 80,136.14

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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.