Home / 88,378.38-121,970.28-50,150.40

Finding the Fourth Proportional to 88,378.38, 121,970.28 and 50,150.40

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Solution

The fourth proportional to 88,378.38, 121,970.28 and 50,150.40 is: 69,212.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,378.38 : 121,970.28 = 50,150.40 : x
  2. Step 2: Convert to fraction form
    88,378.38/121,970.28 = 50,150.40/x
  3. Step 3: Cross multiply
    88,378.38x = 121,970.28 × 50,150.40
  4. Step 4: Simplify right side
    88,378.38x = 6,116,858,330.11
  5. Step 5: Solve for x
    x = 6,116,858,330.11/88,378.38
  6. Step 6: Final answer
    x = 69,212.16

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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.