Home / 86,120.66-129,111.28-26,925.86

Finding the Fourth Proportional to 86,120.66, 129,111.28 and 26,925.86

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Solution

The fourth proportional to 86,120.66, 129,111.28 and 26,925.86 is: 40,366.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,120.66 : 129,111.28 = 26,925.86 : x
  2. Step 2: Convert to fraction form
    86,120.66/129,111.28 = 26,925.86/x
  3. Step 3: Cross multiply
    86,120.66x = 129,111.28 × 26,925.86
  4. Step 4: Simplify right side
    86,120.66x = 3,476,431,536.83
  5. Step 5: Solve for x
    x = 3,476,431,536.83/86,120.66
  6. Step 6: Final answer
    x = 40,366.99

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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.