Home / 88,389.36-121,982.76-50,669.28

Finding the Fourth Proportional to 88,389.36, 121,982.76 and 50,669.28

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Solution

The fourth proportional to 88,389.36, 121,982.76 and 50,669.28 is: 69,926.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,389.36 : 121,982.76 = 50,669.28 : x
  2. Step 2: Convert to fraction form
    88,389.36/121,982.76 = 50,669.28/x
  3. Step 3: Cross multiply
    88,389.36x = 121,982.76 × 50,669.28
  4. Step 4: Simplify right side
    88,389.36x = 6,180,778,621.61
  5. Step 5: Solve for x
    x = 6,180,778,621.61/88,389.36
  6. Step 6: Final answer
    x = 69,926.73

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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.