Home / 88,390.36-121,984.14-50,670.28

Finding the Fourth Proportional to 88,390.36, 121,984.14 and 50,670.28

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Solution

The fourth proportional to 88,390.36, 121,984.14 and 50,670.28 is: 69,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,390.36 : 121,984.14 = 50,670.28 : x
  2. Step 2: Convert to fraction form
    88,390.36/121,984.14 = 50,670.28/x
  3. Step 3: Cross multiply
    88,390.36x = 121,984.14 × 50,670.28
  4. Step 4: Simplify right side
    88,390.36x = 6,180,970,529.36
  5. Step 5: Solve for x
    x = 6,180,970,529.36/88,390.36
  6. Step 6: Final answer
    x = 69,928.11

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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.