Home / 86,673.20-119,664.60-70,795.76

Finding the Fourth Proportional to 86,673.20, 119,664.60 and 70,795.76

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Solution

The fourth proportional to 86,673.20, 119,664.60 and 70,795.76 is: 97,743.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,673.20 : 119,664.60 = 70,795.76 : x
  2. Step 2: Convert to fraction form
    86,673.20/119,664.60 = 70,795.76/x
  3. Step 3: Cross multiply
    86,673.20x = 119,664.60 × 70,795.76
  4. Step 4: Simplify right side
    86,673.20x = 8,471,746,302.10
  5. Step 5: Solve for x
    x = 8,471,746,302.10/86,673.20
  6. Step 6: Final answer
    x = 97,743.55

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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.