Home / 77,239.15-115,860.89-27,312.19

Finding the Fourth Proportional to 77,239.15, 115,860.89 and 27,312.19

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Solution

The fourth proportional to 77,239.15, 115,860.89 and 27,312.19 is: 40,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,239.15 : 115,860.89 = 27,312.19 : x
  2. Step 2: Convert to fraction form
    77,239.15/115,860.89 = 27,312.19/x
  3. Step 3: Cross multiply
    77,239.15x = 115,860.89 × 27,312.19
  4. Step 4: Simplify right side
    77,239.15x = 3,164,414,641.25
  5. Step 5: Solve for x
    x = 3,164,414,641.25/77,239.15
  6. Step 6: Final answer
    x = 40,969.05

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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.