Home / 86,273.42-129,430.86-27,109.04

Finding the Fourth Proportional to 86,273.42, 129,430.86 and 27,109.04

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Solution

The fourth proportional to 86,273.42, 129,430.86 and 27,109.04 is: 40,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,273.42 : 129,430.86 = 27,109.04 : x
  2. Step 2: Convert to fraction form
    86,273.42/129,430.86 = 27,109.04/x
  3. Step 3: Cross multiply
    86,273.42x = 129,430.86 × 27,109.04
  4. Step 4: Simplify right side
    86,273.42x = 3,508,746,684.55
  5. Step 5: Solve for x
    x = 3,508,746,684.55/86,273.42
  6. Step 6: Final answer
    x = 40,670.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.