Home / 86,116.13-118,840.86-48,390.38

Finding the Fourth Proportional to 86,116.13, 118,840.86 and 48,390.38

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Solution

The fourth proportional to 86,116.13, 118,840.86 and 48,390.38 is: 66,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,116.13 : 118,840.86 = 48,390.38 : x
  2. Step 2: Convert to fraction form
    86,116.13/118,840.86 = 48,390.38/x
  3. Step 3: Cross multiply
    86,116.13x = 118,840.86 × 48,390.38
  4. Step 4: Simplify right side
    86,116.13x = 5,750,753,780.72
  5. Step 5: Solve for x
    x = 5,750,753,780.72/86,116.13
  6. Step 6: Final answer
    x = 66,779.06

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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.