Home / 88,025.70-121,529.67-67,842.12

Finding the Fourth Proportional to 88,025.70, 121,529.67 and 67,842.12

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Solution

The fourth proportional to 88,025.70, 121,529.67 and 67,842.12 is: 93,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,025.70 : 121,529.67 = 67,842.12 : x
  2. Step 2: Convert to fraction form
    88,025.70/121,529.67 = 67,842.12/x
  3. Step 3: Cross multiply
    88,025.70x = 121,529.67 × 67,842.12
  4. Step 4: Simplify right side
    88,025.70x = 8,244,830,455.70
  5. Step 5: Solve for x
    x = 8,244,830,455.70/88,025.70
  6. Step 6: Final answer
    x = 93,663.90

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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.