Home / 77,131.54-115,685.63-26,538.26

Finding the Fourth Proportional to 77,131.54, 115,685.63 and 26,538.26

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Solution

The fourth proportional to 77,131.54, 115,685.63 and 26,538.26 is: 39,803.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,131.54 : 115,685.63 = 26,538.26 : x
  2. Step 2: Convert to fraction form
    77,131.54/115,685.63 = 26,538.26/x
  3. Step 3: Cross multiply
    77,131.54x = 115,685.63 × 26,538.26
  4. Step 4: Simplify right side
    77,131.54x = 3,070,095,327.20
  5. Step 5: Solve for x
    x = 3,070,095,327.20/77,131.54
  6. Step 6: Final answer
    x = 39,803.37

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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.