Home / 77,151.58-115,771.08-30,437.26

Finding the Fourth Proportional to 77,151.58, 115,771.08 and 30,437.26

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Solution

The fourth proportional to 77,151.58, 115,771.08 and 30,437.26 is: 45,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,151.58 : 115,771.08 = 30,437.26 : x
  2. Step 2: Convert to fraction form
    77,151.58/115,771.08 = 30,437.26/x
  3. Step 3: Cross multiply
    77,151.58x = 115,771.08 × 30,437.26
  4. Step 4: Simplify right side
    77,151.58x = 3,523,754,462.44
  5. Step 5: Solve for x
    x = 3,523,754,462.44/77,151.58
  6. Step 6: Final answer
    x = 45,673.13

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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.