Home / 88,256.85-121,795.20-47,970.60

Finding the Fourth Proportional to 88,256.85, 121,795.20 and 47,970.60

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Solution

The fourth proportional to 88,256.85, 121,795.20 and 47,970.60 is: 66,199.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,256.85 : 121,795.20 = 47,970.60 : x
  2. Step 2: Convert to fraction form
    88,256.85/121,795.20 = 47,970.60/x
  3. Step 3: Cross multiply
    88,256.85x = 121,795.20 × 47,970.60
  4. Step 4: Simplify right side
    88,256.85x = 5,842,588,821.12
  5. Step 5: Solve for x
    x = 5,842,588,821.12/88,256.85
  6. Step 6: Final answer
    x = 66,199.83

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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.