Home / 64,902.18-89,605.56-49,765.76

Finding the Fourth Proportional to 64,902.18, 89,605.56 and 49,765.76

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Solution

The fourth proportional to 64,902.18, 89,605.56 and 49,765.76 is: 68,707.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,902.18 : 89,605.56 = 49,765.76 : x
  2. Step 2: Convert to fraction form
    64,902.18/89,605.56 = 49,765.76/x
  3. Step 3: Cross multiply
    64,902.18x = 89,605.56 × 49,765.76
  4. Step 4: Simplify right side
    64,902.18x = 4,459,288,793.63
  5. Step 5: Solve for x
    x = 4,459,288,793.63/64,902.18
  6. Step 6: Final answer
    x = 68,707.84

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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.