Home / 88,354.84-121,930.86-50,629

Finding the Fourth Proportional to 88,354.84, 121,930.86 and 50,629

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Solution

The fourth proportional to 88,354.84, 121,930.86 and 50,629 is: 69,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,354.84 : 121,930.86 = 50,629 : x
  2. Step 2: Convert to fraction form
    88,354.84/121,930.86 = 50,629/x
  3. Step 3: Cross multiply
    88,354.84x = 121,930.86 × 50,629
  4. Step 4: Simplify right side
    88,354.84x = 6,173,237,510.94
  5. Step 5: Solve for x
    x = 6,173,237,510.94/88,354.84
  6. Step 6: Final answer
    x = 69,868.70

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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.