Home / 86,107.18-118,823.34-48,379

Finding the Fourth Proportional to 86,107.18, 118,823.34 and 48,379

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Solution

The fourth proportional to 86,107.18, 118,823.34 and 48,379 is: 66,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,107.18 : 118,823.34 = 48,379 : x
  2. Step 2: Convert to fraction form
    86,107.18/118,823.34 = 48,379/x
  3. Step 3: Cross multiply
    86,107.18x = 118,823.34 × 48,379
  4. Step 4: Simplify right side
    86,107.18x = 5,748,554,365.86
  5. Step 5: Solve for x
    x = 5,748,554,365.86/86,107.18
  6. Step 6: Final answer
    x = 66,760.45

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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.