Home / 86,051.55-118,763.96-67,860.57

Finding the Fourth Proportional to 86,051.55, 118,763.96 and 67,860.57

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Solution

The fourth proportional to 86,051.55, 118,763.96 and 67,860.57 is: 93,657.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,051.55 : 118,763.96 = 67,860.57 : x
  2. Step 2: Convert to fraction form
    86,051.55/118,763.96 = 67,860.57/x
  3. Step 3: Cross multiply
    86,051.55x = 118,763.96 × 67,860.57
  4. Step 4: Simplify right side
    86,051.55x = 8,059,389,596.89
  5. Step 5: Solve for x
    x = 8,059,389,596.89/86,051.55
  6. Step 6: Final answer
    x = 93,657.70

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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.