Home / 86,028.38-118,636.55-55,802.67

Finding the Fourth Proportional to 86,028.38, 118,636.55 and 55,802.67

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Solution

The fourth proportional to 86,028.38, 118,636.55 and 55,802.67 is: 76,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,028.38 : 118,636.55 = 55,802.67 : x
  2. Step 2: Convert to fraction form
    86,028.38/118,636.55 = 55,802.67/x
  3. Step 3: Cross multiply
    86,028.38x = 118,636.55 × 55,802.67
  4. Step 4: Simplify right side
    86,028.38x = 6,620,236,402.28
  5. Step 5: Solve for x
    x = 6,620,236,402.28/86,028.38
  6. Step 6: Final answer
    x = 76,954.10

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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.