Home / 86,142.23-118,867.73-53,870.61

Finding the Fourth Proportional to 86,142.23, 118,867.73 and 53,870.61

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Solution

The fourth proportional to 86,142.23, 118,867.73 and 53,870.61 is: 74,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,142.23 : 118,867.73 = 53,870.61 : x
  2. Step 2: Convert to fraction form
    86,142.23/118,867.73 = 53,870.61/x
  3. Step 3: Cross multiply
    86,142.23x = 118,867.73 × 53,870.61
  4. Step 4: Simplify right side
    86,142.23x = 6,403,477,124.42
  5. Step 5: Solve for x
    x = 6,403,477,124.42/86,142.23
  6. Step 6: Final answer
    x = 74,336.10

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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.