Home / 86,066.47-118,812.18-57,433.78

Finding the Fourth Proportional to 86,066.47, 118,812.18 and 57,433.78

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Solution

The fourth proportional to 86,066.47, 118,812.18 and 57,433.78 is: 79,285.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,066.47 : 118,812.18 = 57,433.78 : x
  2. Step 2: Convert to fraction form
    86,066.47/118,812.18 = 57,433.78/x
  3. Step 3: Cross multiply
    86,066.47x = 118,812.18 × 57,433.78
  4. Step 4: Simplify right side
    86,066.47x = 6,823,832,607.44
  5. Step 5: Solve for x
    x = 6,823,832,607.44/86,066.47
  6. Step 6: Final answer
    x = 79,285.61

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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.